Rosco Manufacturing Purebred Billet AR-15 Upper Reciever

Manufactured by Rosco Manufacturing


Out of Stock

NOTE: Limit 2 per household. Quantities exceeding 2 will not allow checkout.


Out of Stock


Most custom assembled AR-15s are mutts, assembled with components from dozens of manufacturers. There's nothing wrong with mutts, they can be fantastic when assembled with the right parts, but sometimes you want a Purebred and for that Rosco Manufacturing has you covered. Machined by their friends over at American Defense Mfg., the Purebred billet upper receiver is cut from a solid block of 7075-T6 aluminum and offers the styling, quality, and strength you're looking for in your next build.

  • Precision machined by American Defense Mfg.
  • Cut from a solid 7075-T6 aluminum billet
  • Tight tolerances for enhanced accuracy
  • Tough MIL-A-8625F Type III Class II hardcoat anodized finish
  • M4 Feed ramps
  • Pre-assembled with port door and forward assist
  • Weighs just 9.4 Oz.

Rosco Manufacturing worked closely with American Defense on the design of the Purebred, taking every detail into account. The result is an upper receiver that will hold up to continued abuse while maintaining exceptional accuracy. To help the receiver stand up, it's been treated with a Type III Class 2 hardcoat anodized finish that per military standards, on top of being machined from hardened 7075 aluminum. Start your next build with a Purebred!

Rosco Manufacturing got their start producing high quality, hard-use precision rifle barrels. They have since expanded, offering their own line of serious use parts and accessories so you can assemble a rifle that doesn't just shoot good and look good, but will handle hard use as well. To top it off, they're production facility is in Central Falls, Rhode Island so you know that every component is 100% made in America, by Americans.


BrandRosco Manufacturing
FinishHardcoat Anodized
Forward AssistAssembled with Forward Assist
Port DoorAssembled with Port Cover
Receiver Material7075-T6 Aluminum
T MarksT-Marked

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see

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