Product Features & Specifications
Sig Sauer MCX Rattler Upper Assembly
- Manufacturer: Sig Sauer
- Model: SIG MCX
- Caliber: 300 Blk
- UPC: 798681587735
- SKU: UAMCX-5B-300-TAP
Sig Sauer Complete 5.5" upper assembly kit for your MCX Rattler in 300BLK. 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.
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