Sylvan Arms AR-15 to 9mm Conversion Block for Glock .. The Sylvan Arms AR-15 to 9mm Glock Conversion Block – GCB100 is a drop-in addition that converts your AR-15 lower to a 9mm Lower for use with Glock magazines. Jeep Xj Turbo Kit, Stern Defense MAG-AD9 AR-15 Glock 9mm/.40 Magazine .. Convert your standard mil spec AR 15, M4, M16 lower assembly to use 9mm and .40 S&W Glock Magazines! The Mag-AD series adapters install in seconds. Downton Abbey Script, TorkMag Magdapt 17 AR15 9mm Conversion Kit. The TorkMag Magdapt 17 conversion kit is the original AR15 magazine well adapter for Glock 17 9mm/.40 S&W/.357 SIG magazines and the only Glock magwell .VideosYou will see more English now.2:10Sylvan Arms AR15-9mm Glock Conversion Adapter.YouTube · Opie In The Smokies2 minutes, 10 secondsNov 7, 202114:17CONVERT any AR to Accept Glock MagsYouTube · Tactical Toolbox14 minutes, 17 secondsAug 2, 202110 key moments in this video5:15Stern Defense MAG-AD9 AR-15 Glock 9MM Conversion .YouTube · Tiberious Gib5 minutes, 15 secondsApr 28, 20204 key moments in this videoFeedbackView all Jks Lift Kit, AR-15 to 9mm Glock Conversion Block -. The 9mm Glock Conversion Block is a drop-in fit to give you a 9mm capable lower without resorting to buying a pistol caliber-specific option. Juul Starter Kit Price 7 Eleven, Sylvan Arms AR-15 9mm Magwell Adapter for Glock .. Conversion Kit: Sylvan Arms AR-15 9mm Magwell Adapter for Glock Magazines + ProMag 9MM Glock Compatible Magazine, 32 Round Capacity, Black Polymer. Ka24de Rebuild Kit, MAG-AD9. MAG-AD9 . Convert your standard mil spec AR 15, M4, M16 lower assembly to use 9mm and .40 S&W Glock Magazines! The Mag-AD series adapters install in seconds. Kamen Rider Model Kit, Adapter/ Conversion Mag Blocks. Results 1 - 10 of 10 — Promag AR15/M16 9mm Magazine Quick Change Adapter Block - Black Polymer. MSRP Price: $65.99. Our Price: $50.00. You Save: $15.99 (24 %) . Kayak Trailer Kit, Stern Defense AR-15 Mag Well Adapter for 9mm Glock .. Convert your standard mil spec AR 15, M4, M16 lower assembly to use 9mm and .40 S&W Glock Magazines! The Mag-AD series adapters install in seconds. Kayali Discovery Sampler Kit, What are the better AR-15 9mm Glock magazine well .. From some preliminary searches, it seems the Stern Defense and the Sylvan Arms adapters seem to be the ones that work the best. PSA also sells one that looks to . Keilani Kita Anal, Sylvan Arms AR-15 9mm Glock Magwell Adapter-95546. Sylvan Arms AR-15 9mm Glock Magwell Adapter. On sale: $114.99 $94.99. Retail Price$114.99. You Save:$20.00(17%). Part Number: 95546. Availability: In Stock.Convert Your AR-15 Into A Glock Mag Fed Pistol Caliber .. Nov 27, 2018 — However if you do not want to buy an entirely new lower then take a look at the Stern Defense MAG-AD9. It is a Glock magazines adapter that .Pros and cons: Mag release is easy to reach with either hand ⋅ Makes cleanup super easy ⋅ View full list Kia Optima Wide Body Kit, Review: Stern Defense MAG-AD9 Glock Magazine .. May 17, 2018 — Stern Defense makes the MAG-AD9, a magazine adapter that allows you to use Glock magazines in an AR-15. Just swap on a 9mm upper and you can .Pros and cons: Super easy to clean ⋅ Flare helped make the magazine reload effortless ⋅ View full list Kia Sorento Lift Kit, AR-9 Adapter Kit: Sylvan Arms 9MM Glock Magwell .. About this Conversion Kit: The Sylvan Arms 9mm Glock Conversion Block converts your AR-15 lower to a 9mm Lower compatible with Glock magazines. This Glock . Kids Kite, Sylvan Arms GCB100 AR-15 Lower Rec 9mm Glock .. This 9mm Glock Conversion Block converts your standard AR-15 lower receiver magazine well to a 9mm Lower, allowing you to use Glock style magazines. This . Kit Carson Park Amphitheatre, Stern Defense AR-15 Conversion Block for Glock 9mm .. Installing in seconds, the Stern Defense Mag-AD9 adapter features last round bolt hold open functionality, setting it apart from other PCC builds. Constructed . Kit Heath, Sylvan Arms AR-15 9mm Magwell Adapter for Glock .. Works with Glock 17 and Glock 19 magazines. Built of 6061 aircraft-grade aluminum. Type: Magwell Conversion - Slide this into your magazine . Kit Lender Net Worth, Conversion Kit: Sylvan Arms AR-15 9mm Magwell Adapter .. Type: Magwell Conversion - Slide this into your magazine well and change your STANAG pattern magazine well into a Glock compatible magazine! Install: Remove the . Kit Lender Shark Tank, AR-15 Magazine Blocks. We have a full selection of AR-15 magazine blocks to help! . ProMag AR-15/M16 9mm Magazine Quick Change Adapter Block Matte Black QuickView. Kit Lopez, Stern Defense Mag-AD9 9mm Glock Magazine Adapter for .. Easily convert your AR-15 into an AR-9. Made from lightweight aircraft grade aluminum which means it's built for longevity and reliability. Get Stern today! Kit Mercer Feet, AR-15 / M16 9MM Magazine Adapter Block For Glock .. The Mag-X allows you to use your pistol magazines in any AR-15 milspec lower - the ultimate PCC-pistol combination for Glock owners! . *Only compatible with mil .TorkMag Magdapt™ 17 AR-to-Glock Magwell Adapter. The TorkMag Magdapt™ 17 conversion kit is the original AR15 magazine well adapter for Glock™ 9mm/.40 S&W/.357 SIG magazines and the only Glock™ magwell . Kit Mercer Taboo, Sylvan Arms Conversion Block AR-15 To 9mm GCB100 .. Designed to install in Mil-Spec lowers almost exactly like a standard rifle magazine. Easy to install and swap out; Accepts popular Glock 9mm magazines . Kit Mft1, Magdapt™ 17 (9mm & .40S&W). The TorkMag Magdapt™ 17 conversion kit is the original AR15 magazine well adapter for Glock™ 9mm/.40 S&W/.357 SIG magazines and the only Glock™ magwell . Downton Abbey Servants Bell, STERN DEFENSE, LLC AR-15 9MM CONVERSION .. The Stern Defense AR-15 9mm Conversion Adapter is easily installed into any mil-spec AR-15 lower receiver within seconds and even incorporates a last-round bolt . Kit Pitt, AR-STONER 9mm Magazine Adapter Block AR-15. The AR-STONER™ 9mm Magazine Adapter Block for the AR-15 platform converts your standard lower to accept 9mm rounds. The anodized aluminum, 9mm mag block . Kita Zen Porn, AR-15 Drop In 9mm Adapter For Glock Mags. Conversion Block is a drop-in fit to give you a 9mm capable lower without resorting to buying a pistol caliber specific option. Designed to install in . Kite Clipart Black And White, sylvan arms 9mm conversion block - glock mags - gcb100. SYLVAN ARMS 9MM CONVERSION BLOCK - GLOCK MAGS - GCB100 . 8" 9MM AR-15 BARRELED UPPER - MAS DEFENSE NERO 7.25" M-LOK RAIL · AR-9 9MM BOLT CARRIER GROUP . Kite En Español, Stern Defense 9MM Magazine Adapter For Glock. Convert your standard mil spec AR 15, M4, M16 lower assembly to use 9mm and .40 S&W Glock Magazines! The Mag-AD series adapters install in seconds. Kite Festival In Dc, Guntec USA AR-15 9mm Magwell Adapter Block. Anyone know is this will work with Glock mags.? Mark (verified owner) – December 30, 2021. Kite Festival Long Beach 2022, Sylvan Arms AR-15 9mm Glock Magwell Adapter. Sylvan Arms AR-15 9mm Magwell Adapter for Glock Everybody needs an AR-15 capable of using Glock compatible magazines, so why not turn your standard AR-15 .Stern Defense Def. Magazine Adapter AD9 Ar-15 TO Glock .. Magazine Adapter Ad9 Ar-15 TO Glock 9/40 Mags 001-SD MAG-AD9-GLOCK-9AND40-M. Kite Rental, Stern Defense Ar-15 Mag Well Adapter For 9mm Glock, Black. Convert your standard mil spec AR 15, M4, M16 lower assembly to use 9mm and .40 S&W Glock Magazines! The Mag-AD series adapters install in seconds. Downton Abbey Sucks, Sylvan Arms AR-15 to 9mm Glock . - GunBuilders.com. Jan 10, 2023 — The Sylvan Arms GCB100 AR-15 to 9mm Glock® Conversion Block is an important step when you convert your .223, 5.56mm, or .300BLK firing AR-15 . Kite Tubing, SYLVAN ARMS AR15 Mag 9mm Glock Conversion Block. SYLVAN ARMS AR-15 Magazine to 9mm for Glock Conversion Block (GCB100) . standard mil spec AR lower to a 9mm lower is easy with the 9mm conversion block. Kitos Cell, AR15 9mm Glock Conversion Block / 905928. Dec 25, 2021 — The Sylvan Arms 9mm Glock Conversion Block converts your AR-15 lower to a 9mm lower that accepts Glock magazines. This Glock AR-15 to AR-9 . Kits Place, Sylvan Arms AR-15 9MM Glock Pattern Magwell Adapter. Sylvan Arms AR-15 9MM Glock Magwell Adapter INSTALLATION INSTRUCTIONS: Remove Upper, then remove button head screw Insert into MagWell just like you would a . Koma Field Kit, Experiences with Magwell Adapters (e.g. Stern, PSA, KAC .. Jun 27, 2021 · 10 posts · 6 authorsI have no strong preference in mag format—I can find Glock mags . ://tacticaltransition.com/product/ar-15-9mm-magwell-adapter-block/ ) Krinkov Parts Kit, Stern Defense, AR15 Magwell Adapter, Glock Magazine .. Convert your standard mil spec AR 15, M4, M16 lower assembly to use 9mm and .40 S&WGlockMagazines! The Mag-AD series adapters install in seconds. Boasting a . Kris Kites, AR-15® / M16 9mm Magazine Quick Change Adapter Block. 9mm magazine adaptor block · Installs in AR-15® lower receivers · Allows the use of 9mm Colt® / SMG type magazines with 9mm upper receivers · Made of high strength . Kristina Kite Gallery, AR-15 Bottom 9mm Adapter. Ideal for users frequently changing between calibers requiring full functionality. Holds the bolt open on the last round. AR 9mm Magazine. FOR COLT/RRA 9MM TYPE .Best mag well adapter? : r/AR9. Apr 13, 2022 — Last round bolt hold open, feed ramps, and ejector all in adapter. I have a Glock 19 but wanted a m4A1 9mm clone like off of MW. Laneige Good Night Kit, ar15 9mm mag well adaptor for colt / uzi style. Expand the versatility of your AR-15 with our AR-15 9mm Mag Well Adaptor for Colt / UZI Style, offering a versatile caliber conversion. Lawn Mower Turbo Kit, Guntec AR-15 9mm Magwell Adapter Block: MGW. This Guntec magwell adapter block is manufactured for the AR-15 rifles chambered in 5.56x45mm. Constructed from an all aluminum body with steel inserts, this . Lb7 Injector Kit, Best AR-15 Conversion Kits (2022): Reviewed - Firearms Land. Mar 26, 2022 — Reasons To Convert : AR 15 To 9mm Conversion Kit. Advantages of a 9mm . You can, in turn, turn it into a Glock magazine-fed lower. Lbx Model Kit, Best AR-15 9mm Conversion Kits. Sep 3, 2021 — Best Budget Pick. Stern Defense MAG-AD9 AR-15 9mm Conversion Adapter. Works with both Glock-style 9mm and .40-caliber magazines; Built out of .List includes: Stern Defense MAG-ADR AR-15 9mm Conversion Adapter ⋅ Hahn Precision AR-15 Bottom 9mm Adapter ⋅ View full list Leather Holster Kits, ATI 9MM AR-15 Adapter 5.56 Lower Receiver 10 Rd Mag. American Tactical Imports lets you convert your AR lower to accept 9mm GLOCK magazines and use a 9mm upper to shoot 9mm out of your AR. Lego Kite Man, American Tactical Conversion for Glock Mags: All You .. Jul 21, 2018 — American Tactical's new AR-15 conversion adapter will fit any Mil-Spec AR-15 556/223 lower and convert it to run a 9mm upper with no . Leveling Kit For 2017 Chevy Silverado, American Tactical 9MM GLOCK MAG ADAPTER TO 5.56 .. Made from 6061-T6 Aluminum, this durable mag well adapter has a built in magazine release for your Glock mags, locks in place with your standard AR-15 . Leveling Kit For A Dodge Ram 1500, Glock mag adapter for AR15 lower. Jan 28, 2018 — . design a 3D printed Glock mag adapter for AR15 lowers (the mag . an adapter to position the mag correctly so that the 9mm bolt can . Downton Abbey Teas, Sylvan Arms AR-15 to 9mm Glock® Conversion Block .. It turns that big 5.56mm-sized hole into a 9mm-sized one that will accept Glock® mags loaded with your favorite 9mm ammo. Additional Info: CNC'd from 6061-T6 .SOLD - Sylvan Arms AR-15 to 9mm Glock Conversion Block. Aug 1, 2022 — This works really well, just slide it into your AR-15 lower and use Glock mags on a 9mm upper. https://sylvanarms.com/product/gcb100/ I only . Lift Kit 2001 Ford Ranger, AR15 to 9mm conversion kit 3D. Jul 18, 2021 — This pack contain Stern Defense AR-15 9mm Conversion Adapter for lower receiver, 9mm bolt carier and 30 round glock mag. Lift Kit For Forester, Feedback on Matador Arms AR15 mag 9mm Glock adapter. Dec 6, 2020 — OK, I need some direction here; I'm waffling back and forth between a mag adapter ( matador / stern ) or a magazine conversion such as CMMG; . Lift Kit For Nissan Juke, TorkMag G-Block AR15 9mm Conversion Kit for AR-15. 40 S&W upper with Glock-cut bolt and a milspec AR15 lower to shoot using Glock mags. The G-Block requires no permanent changes to your lower. With the included . Lift Kit For Yamaha Golf Cart, Ghost Firearms 9mm Adapter Drop In Mag Block. This Adapter Drop In Mag Block converts your standard AR-15 model to accept affordable, lower-penetrating 9 mm rounds using a COLT STYLE MAGAZINE. Made from . Lift Kits For Honda Ridgeline, AR-15 9mm Magwell Adapter Block. Mar 30, 2023 — AR-15 9mm Magwell Adapter Block ; Accepts Colt Style SMG Mags. Installs By Inserting In Bottom Of Standard Lower. Anodized Matte Finish ; Insert .ATI AR15 May well adapter for 9mm Glock mags?. Aug 15, 2018 — ATI AR15 Mag well adapter for 9mm Glock mags? . I just saw these and became curious if they feed well and are reliable. Anyone have experience .Images for ar15 9mm glock mag adapter. Convert your standard mil spec AR 15, M4, M16 lower assembly to use 9mm and .40 S&W Glock Magazines. The Mag-AD series adapters install in seconds.Sylvan Arms AR-15 Glock Conversion Block Review. Nov 9, 2021 — The Sylvan Arms 9mm conversion block is a drop-in that lets you convert your AR 15 lower to accept 9mm Glock mags.Pros and cons: It's built and assembled in the USA ⋅ The conversion block does not include last round bolt hold . ⋅ View full listAdapter, Magazine, 9 AR Conversion, 10-30rd, 2-Pack. Apr 14, 2023 — It seats into your AR15 mag-well and holds up to 30 rounds of 9mm ammunition. Its unique design allows it to feed any CMMG 9mm Radial Delayed .Sylvan Arms AR-15 to 9mm Glock Conversion Block. The Sylvan Arms 9mm Glock Conversion Block converts your AR-15 lower to a 9mm Lower using Glock magazines. Our Glock Conversion Block is built to handle any .Matador Arms Magwell Adapter for Glock. The Mag-X allows you to use your pistol magazines in any AR-15 milspec lower - the ultimate PCC-pistol combination for Glock owners! Fits any standard AR-15 .AR-15 9mm Carbine Magazine Well Adapter fits Glock & .. AR-15 9mm Carbine Magazine Well Adapter fits Glock & Colt Style Magazines - FTF Industries Inc specializes in MAC Cobray RPB SWD Parts & Accessories, .EndoMag® 9MM. 223 PMAG® housing into a 9mm magazine to use with a standard AR lower and 9mm upper of your choosing with a Glock or Colt variant 9mm BCG. We offer both a .Looking for opinions on AR15 9mm mag well adapters for .. Jul 29, 2019 — Most if not all adapters are for colt/uzi mags, I think the angle required to fit glock mags works best with a dedicated lower. I bought the kak .Stern Defense MAG-AD9 AR-15 Glock 9MM Conversion .. Mar 31, 2021 — Stern Defense MAG-AD9 AR-15 Glock 9MM Conversion Adapter Test and Review USCCA Self Defense Insurance www.usccapartners.com/tiberious Become .AR-15 Magwell Adapter to Convert Standard Lower to 9mm. Jul 8, 2019 — AR-15 Magwell Adapter to Convert Standard Lower to 9mm ; Converts Standard Mil-spec Lower to 9mm. 9mm Stick Magazines (not Glock Compatible).FosTecH Complete 9mm Conversion Kit (Upper, BCG .. FosTecH Complete 9mm Conversion Kit All you need to convert your AR to 9mm. Stern Defense 9mm Magwell Adapter (1) Glock 32 Round Magazine Included 9mm BCG .ar 15 9mm magwell adapter 3d models. Here are a few Magwells for your realistic prop or replica firearms, AR-15, Glock 9mm, Thompson, UZI & PPS43. As usual all building details will be in the make.NBS 9MM Colt Magazine Magwell Adapter for AR-15. 9mm AR-15 Mag Well Adaptor for Colt style magazines. This USA Made adapter allows for easy conversion from any standard .223/5.56 lower receiver to 9mm.ATI ATI9MMADAPT Glock Mag Adapter 9mm Lower Black .. Constructed from 6061-T6 aluminum, it offers superior durability and corrosion resistance. Designed to fit 9mm Glock Mags, this AR Conversion Adapter Lower is .Guntec USA 9mm Magwell Conversion Block AR15 Adapter .. Guntec USA 9mm Magwell Conversion Block AR15 Adapter AR-15. US Made; Accepts Colt Style SMG Mags; Installs By Inserting In Bottom Of Standard Lower .Stern Defense | 9mm Glock Magazine Adaptor - MAG - AD9. Convert your standard Mil-Spec AR-15, M4, M16 lower assembly to use 9mm and .40 S&W Glock Magazines! The Mag-AD series adapters install in seconds."ar15 9mm adapter" 3D Models to Print. Click to find the best Results for ar15 9mm adapter Models for your 3D Printer. . Tags AR 15 Magwell - Pro Mag 9mm Colt SMG Adapter.TorkMag Magdapt 17 AR-to-Glock Style Magazine Magwell .. The TorkMag Magdapt 17 conversion kit is the original AR15 magazine well adapter for Glock 9mm/.40 S&W/.357 SIG magazines and the only Glock magwell adapter .STERN DEF. MAGAZINE ADAPTER AD9 AR-15 TO .. MAGAZINE ADAPTER AD9 AR-15 TO GLOCK 9/40 MAGS. . ALLOWS STANDARD MIL-SPEC AR-15 LOWERS TO ACCEPT 9MM AND 40S&W GLOCK MAGAZINES, REQUIRES A GLOCK CUT BOLT.ATI 9MM GLOCK MAG ADAPTER TO 5.56 RECEIVER. The AR-15 conversion adapter will fit any standard AR-15 556/223 lower and convert it to 9mm with no required modifications to your lower or magazines. This mag .AR-15 9MM MAG ADAPTER COMBO. AR-15 9MM MAG ADAPTER COMBO. Adapter: Magwell Adapter Bolt Hold Open On Last Shot One Retention Screw On Top Of Adapter, And Two Set Screws That Lock Into .Sylvan Arms AR-15 to 9mm Glock Conversion Block. Sylvan Arms AR-15 to 9mm Glock Conversion Block. . Designed to install in Mil-Spec lowers almost exactly like a standard rifle magazine.AR-15 to 9mm Glock Carbine Conversion Kit. the easy .. Feb 21, 2019 — . Kit for Glock Mags actually works or not. Full Build list below, but I'm using the FM Products Side Charging 9mm Upper for the AR-15, .9 MM AR-15 Glock mag adapter. Feb 9, 2018 — I used a PSA 9mm upper and a BCG of another brand so I was really pushing my luck. Ran about 200rds through it a few days ago without a single .PALMETTO STATE ARMORY DEBUTS THE PSA .. Oct 23, 2019 — The PSA Custom 9mm Glock compatible Mag-well conversion block. This magazine well conversion block allows one to convert a standard AR-15 lower .Untitled. Glock magazine adapter ar-15 WebAR-15 to 9mm Glock Conversion Block. Rated 4.89 out of 5 based on 9 customer ratings $ 89.99 – $ 114.99. Condition .Mag-X - The Ultimate Adapter. Steel ejector and magazine catch. *Only compatible with mil-spec AR-15 lower receivers, combined with a 9mm upper with a Glock-cut bolt.American Tactical Conversion for Glock Mags: All You .. Jul 21, 2018 — AR Adapter for glock Style Mags: American Tactical Imports Does it Right . AR-15 556/223 lower and convert it to run a 9mm upper with no .3+ Best AR 15 9mm Conversion Kit Reviews 2023. Jul 6, 2023 — The Faxon Firearms Gen 2 9mm Bolt Carrier Group is the best overall in the category 9mm Conversion Kit. It is made from high-grade materials .First Look: GunTec USA 9mm AR-15 Adapter. Mar 31, 2019 — Another nice feature of the GunTec 9mm Magwell is that allows for bolt hold-open when the last round in your magazine is fired, which tells you .Stern Defense Mag-AD9 AR-15 9MM CONVERSION .. · Translate this pageMagazijn adapter om met je mill spec AR15 een 9mm wisselset te kunnen gebruiken met Glock magazijnen Convert your standard mil spec AR 15, M4,.Sylvan Arms Conversion Block 9mm for AR Lower. The Sylvan Arms Conversion Block allows an AR-15 to use 9mm Glock magazines. It is compatible with standard mil-spec lowers and most 9mm uppers.ATI ATI9MMADAPT AR Conversion Adapter Lower fits 9mm .. This mag well adapter has a built in magazine release for your Glock mags, locks in place with your standard AR-15 magazine catch, releases the same way AR .Dedicated Glcok mag lower versus adapters.. Dec 29, 2018 — It seems that the Glock mag adapters from Stern defense, . I have about 500 rounds of assorted 9mm through it using factory and Magpul .Sylvan Arms AR-15 Mag Well Adapter to 9MM GLOCK .. Feb 13, 2023 — Buy Sylvan Arms AR-15 Mag Well Adapter to 9MM GLOCK MAG GCB100 BLK NIB: GunBroker is the largest seller of Other Gun Accessories & Parts Gun .NEW! TORKMAG Magdapt™ 17 (9mm) - AAASportsDistributors. The TorkMag Magdapt™ 17 conversion kit is the original AR15 magazine well adapter for Glock™ 9mm/.40 S&W/.357 SIG magazines and the only Glock™ magwell .8 Best Pistol Caliber AR-15 Carbines (AR-9). Aug 7, 2022 — 3. UDP-9 by Angstadt Arms · The UDP-9 is a finely-tuned 9mm AR-15 pistol that's compatible with Glock and Glock aftermarket magazines. · While it .Reliable AR-15 conversion to 9mm? - Calguns.net. Aug 8, 2018 — What are some of the most reliable conversion kits and parts you would recommend? (Prefer Glock Mags and Last round bolt hold open.) 08-08-2018 .Stern Defense 9MM Glock Magazine Adapter - MAG-AD9. · Translate this page9mm Adapter von Stern Defense Damit lässt sich jeder Standard AR15 Lower als 9mm Lower nutzen der Adapter selber nimmt dann Glock Magazine auf US-Info: .stern defense ar15 9 mm magazinschachtadapter für glock .. · Translate this pageSTERN DEFENSE AR15 9 MM MAGAZINSCHACHTADAPTER FÜR GLOCK MAGAZINE. Easily Convert Your Lower to 9mm. There's no need to go with a pistol-caliber specific AR .Sylvan Arms GcB100 AR-15 to 9mm Glock Conversion Block. Designed to install in Mil-Spec lowers almost exactly like a standard rifle magazine.