SA-15 Folding 13.9" ELITE Rifle built on the Shield Arms Folding Lower Receiver (FLR) for compact storage. This patented system allows the firearm to fold and does not use an adapter. This system is lighter, stronger, and shorter in overall length versus popular folding adapters. Additionally, this system does not modify the carrier. Cerakoted in Shield Arms Wolverine Brown or Graphite Black. Dead Air Flash Hider pinned and welded to bring the barrel length to 16.1". Build Specifications Upper/Lower: 7075-T6 billet aluminum upper/lower Barrel: 13.9" length, 5.56 NATO Chamber, pin/weld Dead Air Flash Hider Mid-length length gas s Mfg: Shield Arms