Rainier Arms PISTON AR's In Stock

We are excited to introduce to you our new RUC MOD 3.5 with Superlative Arms .750 Adjustable Piston System. When we first introduced our RUC MOD 1 and MOD 2, our focus was to develop a rifle that integrated a lightweight design while using the highest quality components. Building on the solid foundation of our predecessors, our new RUC MOD 3.5 is a light weight, high quality and high performace rifle that is heavy on value. It features our new Rainier Arms 16" Night Rail, XTC 2.0 compensator and RA Selector Switch. We have also included MBUS Pro for the RUC Mod 3.5!3


Upper Parts:

• RA Mountain Chrome Moly 5.56mm 16" Barrel Nitride
• 1 in 7" twist
• Extended M4 Feed Ramps
• MPI/HP tested Bolt
• 1/2x28 threads
• Mid length gas system
• Superlative Arms .750 Adjustable Piston System
• Rainier Arms Avalanche MOD2 Charging Handle
• RA Forged A4 upper receiver
• RA Night Rail 16"
• Rainier Arms Compensator - XTC 2.0
• Back Up Front & Rear Sights - MBUS Pro

Lower Parts:

• RA Forged Lower
• Mil-Spec 6 position receiver extension
• H Buffer
• B5 Systems Bravo Stock
• Magpul MOE+ Grip
• ALG QMS trigger
• Rainier Arms Selector Switch - Standard 90 Degree/ Short (45 Degree).
• Fortis QD end plate

Additional info:

• One 30/5 Hexmag magazine
• Case Included
• Weight 6 lbs 9 oz

Rainier Arms 5.56 16" Piston RUC Mod 3.5 Rifle



Rainer Arms 5.56 14.5" Piston RUC Mod 3.5 Rifle