If you wanted to finish building the coolest, most capable, and most affordable AR 15 whisper rifle possible, you need to check our 300 Blackout Rifle Uppers. These pre-built Rifle Uppers provide just the right features to make your 300 Blackout AR capable of superior accuracy with super and subsonic loads. Each Rifle Upper features a universal 5/8 x 24 thread pitch for easy suppressor attachment. The best part? Every 300 Blackout Rifle upper we sell ships straight to your front door – no FFL transfer fees, PICS checks, or paperwork required! That means no waiting in line at the local gun store.
But there are so many Rifle Uppers on the market – why ours? For starters, our 300 Blackout Rifle Uppers feature superior steel, aluminum alloys, and quality, all-American construction. Every barrel we manufacture is made using mil-spec 4150 Chromoly or industry-leading 416R Stainless Steel. Every barrel is heat treated and relieved to achieve a Mohs hardness rating of 28 to 32. Our Rifle Uppers guarantee 1 MOA of accuracy at 100 yards, with regular production showing 0.7 MOA. Because of our heat treatment process, our barrels do not need chrome lining – saving you money and providing better accuracy to boot.
Every 300 Blackout Rifle Upper we sell also includes a quality, mil-spec Picatinny, Keymod, or M-Lok handguard for universal attachment of accessories. And finally, every Rifle Upper we sell is priced for the best value possible. We’ll make it simple: You won’t find a more affordable, quality 300 Blackout Rifle Upper than what we’ve brought here today. We’re proud to say it.
Buyer's Guides for Additional Product Information:
Why Our 300 Blackout Rifle Upper?
- No FFL transfer or PICS check required!
- Ships to your front door, no middle man or paperwork
- Includes mil-spec, chrome-lined bolt carrier group
- Includes standard, universal charging handle
- Can be mated with any standard AR 15 lower
- Zero gunsmithing or benchwork required
- All mil-spec steel and alloy construction
- Heat treated barrels for superior accuracy and life
- Made & constructed in the USA