CMMG AR15 Magazine Catch - 55AFFA7
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CMMG
Overview
The CMMG AR15 Magazine Catch is a reliable component designed to facilitate the smooth release of your magazine during reloads. This part ensures that magazines lock securely in place while providing a quick and effortless release when needed. It’s commonly found in builds featuring a rifle gas system and chambered for 5.56 NATO, making it an essential piece for standard AR-15 configurations.
Specifications
Available Merchants(6)
Prices checked
Stock Alert
October 2026 on GunPartPicker
CMMG AR15 Magazine Catch - 55AFFA7 was the fifth most added magazine release on GunPartPicker in October 2026, behind the TPS Arms AR-15 Mag Catch Assembly, Black - AR-1031, with about 5% of all magazine releases added to builds. Down from #4 in September. Builds with this magazine release are mostly chambered in 5.56 NATO (87%), mostly on mid-length gas (77%, then carbine-length 15%), and nearly all AR-15.
It was in stock most times we checked in October 2026, but today none of the 6 retailers we track has it in stock right now. Listed prices start at $10.13 at BattleHawk Armory for when it comes back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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We ranked every magazine release by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Magazine Release Guide →Frequently Built With
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Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all builds →Builds in the community that include the CMMG AR15 Magazine Catch - 55AFFA7
| Build | Parts | Total |
|---|---|---|
 | 22 | $878.30 |
 | 13 | $971.54 |
 | 27 | $2964.73 |
 | 27 | $3267.30 |
 | 14 | $1136.93 |
 | 20 | $1785.21 |
 | 23 | $4049.29 |
| 16 | $1656.72 |
 | 16 | $924.61 |
 | 14 | $739.18 |
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