Radical Firearms 5.56 Barreled AR-15 Upper - 15" RPR Gen 3 Handguard - BMD Brake - 16"

Manufactured by Radical Firearms
Manufactured by Radical Firearms
4 Reviews
$249.99 $399.99

In Stock

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This Radical Firearms 5.56 Barreled Upper features a 16-inch 5.56 NATO SOCOM profile barrel with a mid-length gas system and a 15-inch Gen 3 RPR handguard. The installed BMD muzzle brake enhances recoil control. Features a low-profile .750 gas block. This upper does not include a bolt carrier group or charging handle. The barrel is threaded with a 1/2x28 pitch and features a 1 in 7 rate of twist for optimal performance, as well as a melonite finish, for durability and corrosion resistance. The free float M-LOK compatible handguard is comfortable and promotes excellent heat dissipation.


  • 16-inch 5.56 NATO barreled upper for AR-15
  • Mid-length gas system
  • 15-inch Gen 3 RPR handguard
  • BMD muzzle brake
  • SOCOM profile barrel, 1/2x28 thread pitch, 1:7 rate of twist
  • Melonite barrel finish
  • .750 low-profile gas block

This type III hard anodized black upper receiver is perfect for any AR-15 lower receiver, and is a great choice for shooters of all experience levels looking to complete their AR-15 build. The Radical Firearms 5.56 Barreled AR-15 Upper is a reliable and practical addition to your firearm collection.

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Barrel Coating
Barrel ContourSOCOM
Barrel Length16
Barrel Material41V50 Chrome Moly Vanadium Steel
BrandRadical Firearms
Caliber Gauge5.56 NATO
FinishHardcoat Anodized
Gas System LengthMid-Length
Gas System TypeDirect Impingement
Handguard15 in M-LOK Rail
Muzzle DeviceMuzzle Brake
Thread Pattern1/2 X 28
Twist Rate1:7
California Prop 65 warning

 WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov.

Ratings & Reviews

4 reviews

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Worth it


This upper assembly is 100% worth picking up. Mine has been nothing but reliable, functioning flawlessly with multiple types of ammo. There is "cheap" and there's "inexpensive". I topped mine with a Primary Arms LPVO and it is as accurate as I'm able to shoot. This, so far, has been a "inexpensive" quality item that I have no problem, or reservations recommending. Hope this review helps you with your decision to purchase...I think you'll be happy you did.

Better than expected

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Looking for a replacement upper for an extra lower I had. This turned out to be perfect. Everything I needed. Better than expected.

Well made

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I’m very impressed with this upper!..

An absolute steal!

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I've built on Radical Firearms products from 'way back when they used to sell stripped lowers. Never had one problem with any of their products. When an opportunity came to snag a Radical upper for half-price, you can bet that I bought two (the limit)! Already built one it's a tack-driver. Love Radical Firearms products!!!