Gas Tube Approx Length:
Rifle: 15 1/8"
Intermediate: 13 3/4"
Mid: 11 7/8"
Carbine: 9 7/8"
Pistol: 6 3/4"
Black Nitride Finish
“Bleed Off”, direct impingement, gas block for the AR15 platform adjusts the gas flow by bleeding the gas out of the block instead of restricting the flow like conventional adjustable blocks.
The pressure used in the block is reduced only to...
The Rainier Arms Precision Match Grade Phosphate BCG - 5.56 is machined and finished to a higher standard to meet and exceed all Mil Spec. It is machined using the most precise equipment in the industry. The bolts are MPI/HP tested & Marked to give...
Our billet sets are CNC machined from solid billet 7075-T6 aluminum which is 70% stronger than the commonly used 6061 aluminum and finished with milspec hardcoat anodize to a surface hardness of 60 Rockwell. We have designed our lowers with an...
The Avalanche’s unique interchangeable handles offer a customized look and feel while supporting individual shooting styles, preserving the fast and fluid motion from either their strong side or support side.
Note: these are the tactical latches for the...
Introducing our Avalanche MOD2 AR-15 Charging Handle. Rainier Arms Avalanche A.I. (Ambidextrous Interchangeable) Charging Handle 5.56 supports the uniqueness of today’s shooter while combining the performance you have come to expect from Rainier...
The Rainier Arms Precision Match Grade Nickel Boron BCG - 5.56 is machined and finished to a higher standard to meet and exceed all Mil Spec. It is machined using the most precise equipment in the industry. The bolts are MPI/HP tested & Marked to...
Rainier Arms Forged Mil-Spec Upper Receiver
Rainier Arms flattop upper receiver is carefully machined to mil-spec to serve as a great foundation for a quality AR rifle.
Rainier Arms Forged Upper was designed to fit our forged lower receivers with color,...
Rainier Arms forged lower receiver is made from 7075 aluminum. The best anodizing dies are used for a deep black finish. Features a upper to lower tensioning screw and a flared out magwell for quick mag changes.
Battle Arms 45 Degree Selector Compatible
Easily secure your low profile gas block by drilling proper sized dimples every time. One screw aligns with the gas hole while the other nylon tipped screw tightens down on the barrel holding it securely in place. Use a 11/64 drill bit to properly drill...
Ultra Low Profile.
Made in the USA
Weight W/ set screws: 1.6oz
The gas block comes with a roll pin as well as two set screws.
This version of the quick detach rail system SWITCH is a Rainier Arms exclusive.
The SWITCH is an extremely lightweight, yet robust free float rail system designed for the 5.56MM platform. When designing the SWITCH, we wanted a handguard that was easy...