Buy Sig Sauer M400 PRO .223 5.56mm – Black online | Sig Sauer M400 PRO, .223, 5.56mm – Black
Accurate, lightweight and crafted from the finest components, the SIGM400 PRO sets the new standard for direct-impingement AR-15s. Chambered in 5.56 NATO, 16″ 1:7 twist rate cold hammer forged barrel, M-LOK handguard and QD wells in the lower receiver. Comes with one 30RD aluminum magazine.
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