Sig Sauer
Mcx Rattler 5.5in 300 Upper
Product Code: UAMCX-5B-300-BLK-TAP UPC/Barcode: 798681587735
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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.
Sig Sauer SIG MCX Rattler Upper, 300 Blackout, 5.5" Barrel, M-Lok Handguard, Black Finish, Includes Charging Handle, Carrier, Sig Duo Matchlite Trigger & 1913 Adapter to convert Standard AR lower to accept MCX Upper UAMCX-5B-300-BLK-TAP
The National Firearms Act regulates the configurations of some firearms assembled with barrels under 16in long. Know the NFA laws in your state before purchasing this item.
