The CMMG Zeroed Bolt Catch Kit (CMMG part no. 55AFF19) is an extended bolt catch built for the AR-15 platform, with dual oversized paddles on both sides of the receiver for faster, more positive bolt catch operation. CMMG machines a tactile texture into both paddle surfaces so a shooter can find and hit the catch by feel, without looking, whether locking the bolt back or releasing it. It’s built from steel with a durable finish for reliable use across high round counts. The kit ships complete with the assembly parts needed to install it, so it’s a straightforward swap for the factory bolt catch.

Key Specifications

• Features dual oversized paddles on both sides of the receiver.
• Paddles have a tactile machined texture for positive, by-feel operation.
• Built from steel for durability under repeated use.
• Finished for corrosion and wear resistance.
• Ships with assembly parts included for a complete install.

Frequently Asked Questions

Does this replace both sides of the bolt catch? Yes, it’s a dual-paddle design with extended paddles on both sides of the receiver.

Are extra parts needed to install it? No, the kit includes the assembly parts needed for installation.

Buy the CMMG Zeroed Extended Bolt Catch Kit

Get faster, more confident bolt catch operation with this kit from CMMG in our AR bolt catch and release selection. Order it from our Lubbock, Texas gun shop for fast, direct shipping right to your door.