- Accepts Glock magazines
- Threaded bolt catch hole
- Threaded hole for upper receiver tension adjustment
- Mil-spec part compatibility ensures maximum rifle customization
- Withstands the harshest punishment from any situation using ultra-tough design, precision machined from aircraft-grade billet aluminum for superior strength.
- Rear take down lug pocket completed*Requires 9mm upper and 9mm bolt carrier group. Includes magazine release.