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Convert any AR style lower into a 5.5″ .300 Blackout MCX style gun
Convert any MIL-SPEC AR Lower into a MCX Rattler. Complete with upper assembly, lower receiver stock adapter kit, side folding AR buffer tube knuckler, and match duo trigger kit.
Specification
| Model | SIG MCX |
|---|---|
| Barrel Length | 5 in |
| Caliber | 300 BLK |
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