HK416, MR556 C.A.R.L. - 2, 3, or 6 Round Interchangeable Cam Limiter

ST Inc Limiter Cam for HK416, MR556 ARC-Fire CARL Lever - 2, 3, and 6 Round Options

Limiter cam for the ST Inc CARL lever used with the HK416 and MR556 ARC-Fire trigger setup. Available in 2, 3, and 6 round configurations, each cam changes the CARL reset cycle before a full trigger release is required to reset and repeat the cycle. Designed to work with your existing CARL components and installs in place of the original cam.

Round Options

• 2-Round: Limits the CARL reset cycle to 2 rounds before a full trigger release is required
• 3-Round: Standard CARL reset cycle configuration
• 6-Round: Limits the CARL reset cycle to 6 rounds before a full trigger release is required

Compatible With:

• HK416 A5 (1.8mm gas vent screw recommended)
• HK MR556 A4 (1.8mm gas vent screw recommended)
• HK MR556 A1 (will require an adjustable gas block to cycle)
• HK416 A1, A3 (will require an adjustable gas block to cycle)

Please Note

• For use with the CARL lever
• Does NOT include the CARL assembly
• Make sure the arm side of the spring goes on first, with the arm in the cam slot