Windham Weaponry has rolled out a new AR-15 platformed pistol chambered in 450 bushmaster. The 450 Thumper weighs in at 5.8 LBs with a 26.25″ overall length. The 450 thumper ships with a 5 round magazine. Has a 9″ barrrel with a 7″ hand guard. MSRP of $1254.00

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