Sig Sauer MCX Rattler Upper 5.5" Conversion Kit, 300 BLK, Tapered Lug, MLOK, Black
Convert any MIL-SPEC AR Lower into an MCX Rattler. Complete with upper assembly, lower receiver stock adapter kit, side folding AR buffer tube knuckler, and match duo trigger kit.
- MCX Upper Assembly
- Charging Handle
- Bolt Carrier Group
- X-Fold Stock Adapter (ADAPTER-X-FOLD)
- MCX Stock Adapter Kit (2401191-R)
- AR Two-Stage Matchlite DUO Trigger Kit (KIT-TRIGGER-AR-DUO)
- 90 Degree Muzzle Adapter for Standard Non Sig Sauer Suppressors
- Owner's Manual
Barrel Length: 5.5 Inches
Caliber/Gauge: 300 BLK
Model Fit: MCX
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