The TacFire MAR063 AR15 Black Barrel Nut Shim 10 Pack provides a simple, reliable way to fine-tune alignment when installing a free-float handguard on your AR-15. Each shim is designed to work with barrel nuts that require precise timing, helping you achieve proper gas tube alignment without over-torquing components.

This set includes ten black barrel nut shims sized for AR-15 applications, giving builders and armorers enough pieces for multiple installs or future adjustments. Ideal for home builders, armorers, and enthusiasts who regularly assemble or upgrade AR-15 rifles, these shims support consistent, repeatable setups while maintaining the integrity of your barrel nut and upper receiver. TacFire’s reputation for practical, dependable AR parts makes this shim pack a useful addition to any build bench.

• Manufacturer: TacFire
• Model: AR15
• Type: Barrel nut shims
• Quantity: 10 pack
• Color: Black
• For Use With: AR-15 rifle free-float handguard installs