SIG MCX Rattler LT LVAW clone in 300 Blackout and 5.56: first look

Key points: SIG MCX Rattler LT

• The LVAW, or low visibility assault weapon, came out of a JSOC program around 2015 that wanted more punch than the MP5SD in the same long, quiet form factor, and SIG's 300 Blackout MCX made it through against entries such as AAC's Honey Badger.
• The LVAW is not integrally suppressed: a suppressor sits under a long handguard for the integral look, and where the originals used SIG's SRD762Ti, this build carries a SIG Hexium 30-caliber can rated for 300 Blackout and 5.56.
• The pistol package ships in 5.56 with a 300 Blackout barrel included, so it runs as a suppressed 300 Blackout gun, a 5.56 gun under the long handguard, or a short Rattler LT without it, and the hosts note the pistol configuration suits some restricted states.
• The hard-to-find part is the handguard: Space Magic Industries and Shadow Strategic supplied a reproduction LVAW handguard and a reproduction hand stop with a built-in QD point, styled on the pre-M-LOK era.
• The optic is a SIG Romeo4T Pro, which Jason rates above the Aimpoint T2 for its reticle options: circle dot, bullet drop compensator and a 32 MOA ring.
• A J. Bennett Designs Omega valve lets owners tune the gun across loads, including 300 Blackout supersonic and subsonic ammunition.
• On the range the hosts describe the gun as stable and quiet; the video shows shooting but no measured results.

About this First Look video

SIG MCX Rattler LT built as an LVAW clone, a modern take on JSOC's suppressed low visibility assault weapon, shown by Jason and Eliza of Classic Firearms. The limited pistol package ships in 5.56 with a 300 Blackout barrel, a SIG Hexium suppressor under a reproduction LVAW handguard from Space Magic Industries and Shadow Strategic, a SIG Romeo4T Pro red dot and a J. Bennett Designs Omega valve, then goes to the range.

Transcript: SIG MCX Rattler