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CMMG
Overview
The CMMG AR-15 Forward Assist Kit is a complete assembly designed to ensure reliable chambering of rounds in your AR-15 platform. This standard-style kit features a straightforward black finish, making it a functional and practical addition to your build. It's commonly found in mid-length gas system configurations chambered in 5.56 NATO, where precise reliability during operation is crucial.
CMMG AR-15 Forward Assist KIT was the second most added forward assist on GunPartPicker in August 2026, behind the Radian Forward Assist - 7075 Aluminum - Black, with about 20% of all forward assists added to builds. That's its 3rd straight month at #2. Builds with this forward assist are mostly chambered in 5.56 NATO (73%, then .223 Wylde 10%), split between carbine-length (39%) and mid-length (33%) gas systems, and mostly AR-15 (86%, then AR-10 12%).
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today all 10 retailers we track have it in stock. It dipped to $15.05 at Brownells for a stretch in August 2026, under its usual $15.99 to $16.92, so sales do come around. Buying today, the lowest price is $15.13 at GritR Sports, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
We ranked every forward assist by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Forward Assist Guide →The part most often added in each category by the 285 builds that include this one
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Bravo Company M16 Bolt Carrier Group Black
Aero Precision M4E1 Complete Lower Receiver W/MOE SL Grip & SL-S Carbine Stock
Aero Precision AR-15 Ejection Port Cover Assembly
WMD Guns AR-15 Gas Tube Nitromet Mid-Length
Aggregated and anonymized data showing how builders use this product
Builds in the community that include the Cmmg Ar-15 Forward Assist Kit
| Build | Parts | Total |
|---|---|---|
 | 22 | $1378.55 |
 | 21 | $692.25 |
 | 17 | $2526.29 |
 | 17 | $793.40 |
 | 12 | $913.14 |
 | 20 | $802.40 |
 | 22 | $1011.53 |
 | 23 | $1868.45 |
 | 22 | $1760.23 |
 | 15 | $1121.77 |
 | 29 | $1848.89 |
| 22 | $1297.75 |
4 global ratings
Top reviews
everything you need to add a forward assist to a stripped upper, even the roll pin. detent and spring are included. nitride finish on the assist looks better than a basic phosphate
CMMG forward assist kit is a great upgrade over the basic assembly that comes with a stripped upper. Spring tension is correct, pawl movement is smooth. Roll pin alignment was straightforward. Drops in with the right punch.
CMMG forward assist kit comes complete with the pawl, spring, and roll pin. Saves sourcing parts individually. Spring tension is correct, doesnt stick or float. Roll pin alignment was on the first try. Solid budget upgrade.
CMMG forward assist kit has slightly different black anodize than my CMMG receiver in direct light. Mechanically perfect, spring tension is correct, pawl moves smoothly. Drop in install with the included roll pin.
