Rainier Arms forged upper receiver was designed to fit our forged lower receivers with color, texture, & machining. These uppers are "T - marked" engraved and have extended M4 feed ramps. Fully assembled. Gen 2 Uppers are deep black finish and match well with Rainier Arms as well as MEGA lowers. Does not included BCG or charging handle. FEATURES: - SKU: RA-A4-UR-G2 - Product Type: AR-15 Assembled Upper Receiver - Manufacturer: Rainier Arms, LLC - Type: AR-15 upper receiver - Model: Gen 2 - Assembled: Yes - Origin: Made in the USA in Kansas - Caliber: 5.56mm, .223, 300 Blackout - Type: Forged - Material: 7075 aluminum - Color/Finish: Deep black anodized
https://www.k3armory.com/terms-and-conditions/
