Extended release lever speeds magazine changes and enhances the shooter's ability to clear jams, double feeds, and malfunctions quickly and safely. Lets you catch and release the bolt with the trigger finger inside the triggerguard, instead of with your off hand. Push upward on the lever to lock the bolt rearward; push lightly downward to release it. Both operations can be performed without removing your hand from the pistol grip. EBRv1 clamps to your rifle's existing bolt release. Can be installed or removed in minutes with no permanent alteration to your rifle. Mfg: Phase 5 Tactical SPECS: Machined steel, matte black finish. 2A 1/4" (5.3cm) long. A 1/2 oz. (14g) wt.