
Strike Industries

Rise Armament

CMMG

Strike Industries

Seekins Precision

Troy Industries

Tps Arms

LBE Unlimited

Fortis Manufacturing

Rise Armament

Odin Works

Phase 5 Weapon Systems

Geissele

Battle Arms Development

Sons of Liberty Gun Works

CMMG

Strike Industries

Rise Armament

CMMG

Strike Industries

Seekins Precision

Troy Industries

Tps Arms

LBE Unlimited

Fortis Manufacturing

Rise Armament

Odin Works

Phase 5 Weapon Systems

Geissele

Battle Arms Development

Sons of Liberty Gun Works

CMMG
The magazine release parts builders added most in September 2026, ranked from every build on GunPartPicker.
Updated · counts come from real builds on GunPartPicker
We analysed real builds to see what people actually run.
Read the full guide: AR-15 Magazine Release Guide →Prices checked · refreshed daily across 37 retailers