APF Fury Upper 5.56 NATO 16" M-LOK 15" Nitride

The APF Fury is a complete AR-15 upper receiver kit chambered in 5.56 NATO, built around a 16" 4150 Chrome Moly barrel with a nitride (QPQ) finish. The barrel features a 1:7 twist rate and runs a mid-length gas system with an APF adjustable gas block. A 15" M-LOK free-float handguard provides ample rail space and accessory mounting. The upper ships with a Diamond-Honed Nitride M16 bolt carrier group. The barrel is threaded at the muzzle; no muzzle device is specified. Note: this kit includes a BCG and drop-in trigger unit but does not include a complete lower receiver.