Click to see full view
CMMG
Overview
The CMMG AR15 Ambi Mag Catch is designed for both left- and right-handed shooters, allowing for easy magazine release from either side of the firearm. This ambidextrous feature enhances accessibility and convenience, making it an essential component for a smooth reloading process. You’ll often find this mag catch in builds featuring a mid-length gas system chambered in 5.56 NATO, catering to those who prioritize versatility and user-friendliness in their setups.
Prices checked
CMMG AR15 Ambi Mag Catch, Black - 55AFF6E is the second most added magazine release on GunPartPicker so far in October 2026, behind the Strike Industries Ambidextrous Magazine Release, Black - ARAMBIMRBK, with about 15% of all magazine releases added to builds. That's its 3rd straight month at #2. Builds with this magazine release are mostly chambered in 5.56 NATO (69%, then 300 Blackout 11%), split between mid-length (52%) and carbine-length (25%) gas systems, and mostly AR-15 (94%).
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today 6 of the 9 retailers we track have it in stock. The best price drifted down from $39.99 to $29.99 over September 2026 without a real sale. Buying today, the lowest price is $29.76 at Classic Firearms, which matches the best price we saw in September.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
We ranked every magazine release by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Magazine Release Guide →The part most often added in each category by hundreds of builds that include this one
Wilson Combat AR-15 Lower Receiver Forged
Timber Creek Outdoors Ambidextrous Safety Selector - Black
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
Wilson Combat AR-15 Starburst Gunfighter Pistol Grip Black
CMMG AR-15 HD Pivot and Takedown Pin Parts KIT - 55AFF3B
Strike Industries Extended Bolt Catch
Aggregated and anonymized data showing how builders use this product
Builds in the community that include the CMMG AR15 Ambi Mag Catch, Black - 55AFF6E
| Build | Parts | Total |
|---|---|---|
 | 17 | $780.27 |
 | 19 | $1186.87 |
 | 18 | $1383.93 |
 | 24 | $7100.30 |
 | 15 | $1128.24 |
 | 13 | $1046.66 |
 | 21 | $1294.86 |
 | 20 | $1220.84 |
 | 16 | $840.14 |
 | 24 | $2245.72 |
| 21 | $5166.66 |
 | 27 | $2338.41 |
3 global ratings
Top reviews
CMMG ambi mag catch is a great upgrade over a single side mag catch. Right side paddle is sized for trigger finger activation. Both sides press cleanly. Black anodize matches CMMG receivers. Drop in fitment with the standard catch spring.
CMMG ambi mag catch works correctly with the standard catch spring. Wish the package included a backup detent for the price - those small parts go flying during install. Function is reliable once together. Anodize matches CMMG lowers.
CMMGs ambi mag catch lets me drop a mag from the right side with my trigger finger which is way faster during reloads. The right side paddle is sized correctly to avoid accidental presses. Drop-in fitment with the standard spring. Anodize matches my CMMG receiver.
