Ever wonder why your bolt stays open after the last cartridge is fired from a magazine? Me neither, but this little bad boy gets a little bump from the back of the follower and pivots up to stop the entire bolt carrier group.
- Made in an ISO 9001:2008 factory
- Metal construction
- Weight: 12g
- (1) Bolt catch
- All Mil-Spec BCGs
- All Mil-spec lowers
Tools required: maybe a roll pin punch
Installation notes: It's pretty self explanatory, only one place it can go.