CMMG 55BA556 FORWARD ASSIST KIT is a mil-spec compatible forward assist assembly built for AR-15 platform rifles and select CMMG upper receivers. This forward assist replacement kit (55BA556) suits builders, gunsmiths, and AR owners who need to repair or replace a worn or damaged forward assist mechanism on their rifle. CMMG designs this kit to fit standard mil-spec upper receivers, giving builders a drop-in solution for AR-15, CMMG Mk3, and CMMG LR-308 platforms.
Key Features
- Manufacturer part number 55BA556, UPC 815835012599
- Compatibility AR-15, CMMG Mk3, CMMG LR-308
- Finish black
- Included components forward assist plunger, spring, roll pin
Special Features
- This kit matches mil-spec forward assist dimensions, so it drops into upper receivers built to that same standard without custom fitting
- CMMG backs this part with its Lifetime Quality Guarantee, giving builders confidence beyond a typical aftermarket part
- The kit bundles all three components needed for a complete forward assist replacement, so you are not sourcing the plunger, spring, and roll pin separately
Practical Benefits
- You get a straightforward way to repair a forward assist that has worn out or lost spring tension on your AR-15 build
- This kit works well for builders assembling a new upper receiver who need the forward assist component to complete the build
- If you are asking whether this kit fits an LR-308 pattern upper, CMMG confirms compatibility across the AR-15, Mk3, and LR-308 platforms
- Installing this kit is compatible with any mil-spec upper receiver that accepts a standard forward assist assembly
- As a builder or gunsmith, your CMMG forward assist kit gives you a reliable, mil-spec correct replacement part backed by CMMG's lifetime guarantee
The CMMG 55BA556 Forward Assist Kit stands as a practical choice for AR-15 and compatible platform builders who need a dependable replacement forward assist assembly.
| MANUFACTURER | CMMG |