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(Part 1) M4 Barrel Extension
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(Part 2) Barrel Nut
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(Part 3) Front Sight Taper Pin (2 required)
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(Part 4) Front Swivel Rivet
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(Part 5) Front Swivel
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(Part 6) Front Sight Post, A2
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(Part 7) Front Sight Detent
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(Part 8) Front Sight Spring
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(Part 9) Handguard Snap Ring
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(Part 10) Weld Spring
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(Part 11) Handguard Slip Ring (Delta Ring)
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(Parts 9, 10, 11) Delta Ring Assembly includes handguard snap ring, weld spring and handguard slip ring.
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(Part 12) Gas Tube Roll Pin
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(Part 13) Gas Tube, Standard
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(Part 13) Gas Tube, CAR
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Gas Tube, MID-LENGTH
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Gas Tube, PISTOL
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(Part 14) Handguard Cap, Triangular
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(Part 14) Handguard Cap, Round
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Crush Washer
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Crush Washer - 5/8
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This barrel nut will work with all YHM free float forearms.
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Del-Ton AR-15 3G Brake
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