The "OEM+" kit for upgrading your .45 ACP pistol to an optic-ready slide.
This Glock® 21-compatible slide kit includes an "OEM+" slide: It sports a nearly factory fit and finish, but with some key upgrades and improvements. It's precision-milled from heat-treated 416R stainless, features a rugged matte Cerakote black finish, and comes with an RMR optic footprint cut for your favorite red dot.
Included with this slide kit is a set of OEM-grade internal components for the slide, and your choice of precision barrel, also made from 416R stainless, heat-treated, and available with a black nitride or polished finish.
Glock® 21 Compatible Build Kit: What's Included
This kit is not a firearm. This Glock®-compatible slide kit includes a slide, barrel, operating rod with spring, and slide parts kit. Does not include a frame.
Slide
- Platform: G21
- Caliber: .45 ACP
- Material: 416R Stainless
- Finish: Cerakote (Matte Black)
- Features: RMR optic cut; Front and rear angled serrations; Compatible w/ factory iron sights
Barrel
- Caliber: .45 ACP
- Twist Rate: 1:16
- Material: 416R Stainless
- Finish: Nitride Black or Bare Stainless
Barrel Options
- Option 1: Black Nitride
- Option 2: Stainless Steel
Slide Parts Kit Includes:
- Firing pin
- Firing pin spring
- Firing pin spring cup
- Firing pin safety
- Firing pin safety spring
- 9mm Extractor
- Extractor depressor plunger
- Extractor depressor plunger spring
- Channel liner
- Spacer Sleeve
- Steel cover plate
- Polymer guide rod (guide rod, washer, screw)
- Guide rod spring
Sold Separately:
- Frame
- Pistol red dot
- Iron Sights
DISCLAIMER: “GLOCK” is a federally registered trademark of GLOCK, Inc. and is one of many trademarks owned by GLOCK, Inc. and GLOCK Ges.m.b.H. Neither Gun Builders Depot, a/k/a GunBuilders.com nor this site are affiliated in any manner with, or otherwise endorsed by, GLOCK, Inc. or GLOCK Ges.m.b.H. The use of “GLOCK” on this page is merely to advertise the sale of GLOCK pistols, parts, or components. For additional genuine GLOCK, Inc. and GLOCK Ges.m.b.H products and parts visit www.glock.com.
WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to: www.P65Warnings.ca.gov
Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or "assault weapons" (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily.
GunBuilders.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.
