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SI Defense Complete and Assembled .223/5.56 AR-15 Bolt Carrier Group
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Our Price: $125.00
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SI Defense AR-15 .223/5.56 bolt carrier groups are completely mil-spec, assembled and ready to drop in. Carrier is machined from 8620 steel, heat treated, mag pen inspected and manganese phosphated per Mil-DTL-16232G. Bore is hard chromed. The bolt is machined from Carpenter 158, shot peened, mag pen inspected and manganese phosphated per Mil-DTL-16232G. Gas key tube is hard chromed and key is properly torqued and staked.
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SI Defense Crush Washer, Barrel
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Our Price: $3.00
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SI Defense Crush Washer is used during the installation of a flash hider, muzzle brake or compensator on a barrel. Just place on the barrel, then thread on your compensator, muzzle brake or flash hider and torque to 15-20 ft-lbs. Material: Steel, manganese phosphate coated.
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SI Defense Delta Pack
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Our Price: $14.00
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This pack contains the complete Delta group - snap ring, weld spring washer, and aluminum (not plastic) Delta ring.
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SI Defense .223/5.56 Steel Barrel Extension
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Our Price: $35.00
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Steel barrel extension, manganese phosphated per mil-spec, for .223/5.56 caliber. No pin included.
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Barrel Extension Pin for .223/5.56 caliber
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Our Price: $5.00
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Barrel Extension Pin for .223/5.56 caliber
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Assembled aluminum charge handle for .223/5.56 AR-15
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Our Price: $25.00
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Assembled aluminum charge handle for .223/5.56 AR-15. Ready to slide in upper receiver, black.
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.223/5.56 Ejection Port Cover, assembled, with pin
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Our Price: $17.00
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.223/5.56 Ejection Port Cover, assembled, with pin and spring. Aluminum, anodized black.
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Forward assist, assembled, with spring
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Our Price: $25.00
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Forward assist, assembled, with spring and roll pin. Round-style, black
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.223/5.56 Carbine Length Plastic Hand Guards, Black
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Our Price: $35.00
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.223/5.56 Carbine length plastic hand guards, black. With aluminum heat shields. Two-piece, synthetic.
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.223/5.56 Rifle Length Plastic Hand Guards, Black
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Our Price: $38.00
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.223/5.56 Rifle length plastic hand guards, black. With aluminum heat shields. Two-piece, synthetic.
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