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  1. NiB-X COMPLETE AR-15 BILLET UPPER ASSEMBLY 15" HANDGUARD | 5.56

    This NiB-X coated 7075 T6 Billet Aluminum upper drops onto any Mil Spec lower receiver for ultimate reliab…

    $877
  2. NIB-X COMPLETE AR-15 BILLET UPPER ASSEMBLY 15" HANDGUARD

    This NiB-X coated 7075 T6 Billet Aluminum upper drops onto any Mil Spec lower receiver for ultimate reliab…

    $877
  3. NiB-X COMPLETE AR-15 BILLET UPPER ASSEMBLY 15" HANDGUARD | 300 BLKOUT

    This NiB-X coated 7075 T6 Billet Aluminum upper drops onto any Mil Spec lower receiver for ultimate reliab…

    $877
  4. NiB-X .308 20" BARREL, 1:10, CROWNED

    Upgrade your rifle with this NiB-X, .308 20" Barrel, 1:10 Twist, Crowned.

    $305
  5. Nitromet 300 BO Barrel 16" 1:8 Twist

    The stout Nitromet 300 BO Barrel 16" 1:8 Twist, Government Profile, Pistol Length Gas System 4142. This is…

    $259.56
  6. NiBX 5.56 Barrel 16" 1:7 Twist GP Carbine Length Gas System

    NiB-X coating make sure this barrel has the optimal combination of hardness, wear resistance, lubricity, a…

    $220
  7. Nitromet 5.56 M4 Barrel Carbine Gas System 1-7 Twist

    These barrels are made of 4150 Chrome Moly Vanadium steel, chambered for 5.56mm NATO, button rifled with 1…

    $206
  8. NiB-X .308 Bolt Carrier Group

    The NiB-X .308 Bolt Carrier Group provides long life and easy cleaning in the harshest of environments. It…

    $275
  9. MSR Full Auto Bolt Carrier Group | Selectable

    Proven through 30,000 rounds of Government protocol endurance testing and guaranteed for life against chip…

    $140.00 - $175.00
  10. Full Auto Bolt Carrier Group | Polished

    Full Auto Bolt Carrier Group - Polished

    $170
  11. NiB-X M16 | AR-15 Full Auto Bolt Carrier Group | Polished

    NiB-X M16 | AR-15 Full Auto Bolt Carrier Group | Polished

    $170
  12. NiB-X Full Auto Bolt Carrier Group | Two Tone | Black and Silver

    NiB-X Full Auto Bolt Carrier Group - Two Tone Black and Silver

    $160

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