McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams
Taking the AR15 parts and accessories to new heightsTM
Rainier Arms, LLC

Rainier Arms Keymod Orias Chassis System Type 1 Trunnion W/ ACCESSORY RAIL Mount -Nickel Boron

Rainier Arms Keymod Orias Chassis System Type 1 Trunnion W/ Night Vision Mount-Nickel Boron
Sign up to get notified when this product is back in stock

Availability: Out of stock




The Orias chassis is designed to have a removable rear trunnion that enables the chassis to adapt to a variety of butt stock options and manufacturers.

Type 1 Trunnion:
The Type 1 trunnion was designed to adapt the chassis to accept butt stocks that have the lower 1/2" diameter locating pin for AR-15 style butt stocks that use a rear end plate or have an integral locating pin(ex: Magpul PRS Stock). The Type 1 trunnion will only accept flat top grips without the beavertail.


  • Compatible with Remington 700 short action pattern receivers
  • Mega Arms flat top grip included
  • 7075-T651 Billet Aluminum
  • Extremely light weight
  • KeyMod
  • No bedding required due to our revolutionary self-adjusting recoil lug locking system (patent pending)
  • Compatible with Accuracy international style box magazines
  • The removable rear trunnion is compatible with all AR style buffer tubes and butt stocks
  • QD inserts made from steel,black nitrite coated for strength and reliability
  • Ambidextrous magazine release
  • Quick detach Night vision mount

Additional Info

Additional Info

SKU RA-700-KEY-T1-Nickel
Manufacturer Rainier Arms, LLC
Finish No
Barrel Length No
Caliber No
Configuration No
Option No
Gas Length No
Height No
Rail Length No
Mount No
Profile No
Reticle No
Co Witness No
Size No


Write Your Own Review

Only registered users can write reviews. Please, log in or register

You may also be interested in the following product(s)