LWRC International LWRC ICDI Direct Impingement .300 Blackout 16.1" 1:7" 5/8x24 Bbl M-LOK Black Complete Upper Receiver ICDIU3B16ML

The LWRC ICDI Direct Impingement .300 Blackout 16.1" M‑LOK Complete Upper Receiver is a premium AR‑15 style upper built around LWRC’s proven direct impingement system and a cold‑hammer‑forged, NiCorr‑treated barrel with a 1:7″ twist and 5/8×24 muzzle threads for a muzzle device or suppressor. The mono‑forged upper pairs with a 12″ M‑LOK free‑float handguard and a proprietary nickel‑boron coated BCG for smooth cycling. Ambidextrous controls and a full‑length Picatinny rail make it ready for optics, and it’s designed to mount to any MIL‑SPEC AR‑15 lower receiver. Whether you’re building a dedicated .300 Blackout rifle or upgrading a current setup, this upper combines robust LWRC construction with direct‑impingement performance. LWRC International LWRC ICDI Direct Impingement .300 Blackout 16.1" 1:7" 5/8x24 Bbl M-LOK Black Complete Upper Receiver ICDIU3B16ML