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.450 Bushmaster

The .450 Bushmaster is a rifle cartridge  developed by Tim LeGendre of LeMag Firearms, and licensed to Bushmaster Firearms International.The .450 Bushmaster is designed to be used in the standard M16s and AR-15s, using modified magazines and upper receiver assemblies.

  • .450 BM 18" Nitride 1: 24 - BLEM see below

    BARREL LENGTH: 18"CALIBER: .450 BushmasterTWIST RATE: 1:24PROFILE/CONTOUR: HeavyMATERIAL: 4150 Chrome Moly VanadiumFINISH: ParkerizedGAS SYS: Mid-LengthDIAMETER AT GAS PORT: .750MUZZLE THREAD: 11/16 x 24 ADDITIONAL SPECS/NOTES: Not compatible with...

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