Rainier Arms RUC Pro MK2 5.56 NATO Partial Upper Receiver

Introducing the RUC PRO MK2 Partial Upper. Bringing the highest quality parts to the market, while offering the best value as well. This partial upper utilizes a Rainier Arms Low Pro nonadjustable gas block on our new and improved Rainier Arms Select barrel. Pairing up with new PRO series MK2 handguard to provide shooters with a rock solid handguard that can take any abuse. Throw in your favorite charging handle and bolt carrier group and you are good to go! Upper Build: Rainier Arms Select 5.56 NATO Barrel 10.5" 12.5" Rainier Arms Forged Upper Receiver Rainier Industries PRO Series MK2 Quad-Rail Handguard 10.5": 9.55" 12.5": 11.75" Rainier Arms Low Pro Gas Block - .750" (Non-adjustable) (Gasblock pinned) Rainier Industries .223/5.56 Flash Hider - 1/2x28 Weight: 10.5": 3 lbs 3.4 oz 12.5": 3 lbs 9.6 oz Please NOTE: BCG and Charging Handle NOT Included.