CMMG FORWARD ASSIST KIT

Description

The CMMG Forward Assist Kit gives builders and gunsmiths everything needed to install or replace a complete forward assist assembly on a mil-spec upper receiver. Rather than hunting down the plunger, spring, and roll pin as individual loose parts, this kit bundles all three components so the job stays straightforward from start to finish.

The forward assist itself exists to manually close the bolt carrier group when the rifle fails to go fully into battery — a condition that can arise from a dirty chamber, an out-of-spec round, or debris interference. Pressing the serrated paddle drives the plunger against the bolt carrier’s ratchet teeth, seating the round without cycling the action. The spring returns the plunger to its neutral position once released. That three-part interaction is exactly what this kit addresses, and having all three components from the same manufacturer means they are dimensioned to work together as an assembly rather than as mismatched sourced parts.

Compatibility covers AR-15, CMMG Mk3, and LR-308 upper receivers, so it serves both standard AR builds and the longer LR-308 platform without requiring modification. The mil-spec fit means it drops into any upper receiver built to that same standard. CMMG backs this part with their Lifetime Quality Guarantee, which applies to the full product line rather than being a limited or time-bound warranty. Whether you are completing a new upper build or replacing a worn assembly that has lost spring tension, this kit covers the repair without sourcing components piecemeal.