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Radical Firearms 16 in. 12.7x42 (.936) Upper Assembly

Radical Firearms Upper Assembly 16 inch 12.7x42 .936, 12 inch FHR, w/BCG and CH, Black, CFU16-12.7X42-12FHR
Radical Firearms Upper Assembly 16 inch 12.7x42 (.936), 15 inch FHR, Black CFU16-12.7X42-15FHR
Radical Firearms Complete Upper Assembly 16in 12.7x42 ,.936, 1/20 Twist, 12in MHR, M-LOK, Panzer Brake, Black, CFU16-12.7X42-12MHR
Radical Firearms Complete Upper Assembly 16in 12.7x42 ,.936, 1/20 Twist, 15in MHR, M-LOK, Panzer Brake, Black, CFU16-12.7X42-15MHR
Radical Firearms Upper Assembly 16 inch 12.7x42 .936, 12 inch FHR, w/BCG and CH, Black, CFU16-12.7X42-12FHR
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Radical Firearms Upper Assembly 16 inch 12.7x42 .936, 12 inch FHR, w/BCG and CH, Black, CFU16-12.7X42-12FHR
Radical Firearms Upper Assembly 16 inch 12.7x42 (.936), 15 inch FHR, Black CFU16-12.7X42-15FHR
2 of 4 images
Radical Firearms Upper Assembly 16 inch 12.7x42 (.936), 15 inch FHR, Black CFU16-12.7X42-15FHR
Radical Firearms Complete Upper Assembly 16in 12.7x42 ,.936, 1/20 Twist, 12in MHR, M-LOK, Panzer Brake, Black, CFU16-12.7X42-12MHR
3 of 4 images
Radical Firearms Complete Upper Assembly 16in 12.7x42 ,.936, 1/20 Twist, 12in MHR, M-LOK, Panzer Brake, Black, CFU16-12.7X42-12MHR
Radical Firearms Complete Upper Assembly 16in 12.7x42 ,.936, 1/20 Twist, 15in MHR, M-LOK, Panzer Brake, Black, CFU16-12.7X42-15MHR
4 of 4 images
Radical Firearms Complete Upper Assembly 16in 12.7x42 ,.936, 1/20 Twist, 15in MHR, M-LOK, Panzer Brake, Black, CFU16-12.7X42-15MHR

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Questions & Answers
Will this upper fit any ar-15 lower receiver

yes it will

by pound, Verified Owner, March 4, 2021
See 1 More Answer
12.7mm is somewhat close to 50 caliber right? Expert Answer

The Radical Firearms 16 in. 12.7x42 (.936) Upper Assembly is chambered in 12.7x42mm which is the same as 50 Beowulf since 50 Beowulf is a trademarked name.

by Hunter, Gear Expert, December 1, 2022
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review
12.7x42 purchase Radical Arms. by Squirrel, February 26, 2020
No malfunction in operation,fit and finish are good. The mag provided is garbage, thankfully I picked up some quality magazines. The brake isn't the best I will be replacing it soon. Other than that ,Love,Love this thumper!! Yes I do recommend it.
1/2 found this helpful
Helpful Positive Review
light and ready to rock by More Ammo, Verified Owner, April 16, 2020
Bought this for a friend's build. It's a lot lighter than a Beowulf from AA. Looks solid, and we'll see how the muzzle brake works when we get it to the range. Currently very happy with the completed project.
2/2 found this helpful
Helpful Positive Review
Girly Giggles by Mike Sparks, Verified Owner, March 18, 2019
So I've always wanted a .50 Beo ever since I seen a picture of it in an NRA Magazine. Read all kinds of articles, watched all kinds of reviews and undoubtedly decided i was going to build one. It was a few years in the making and i wasn't sure how i ...
Read More...
7/9 found this helpful
Helpful Positive Review
Love My Beawulg by Shane69, Verified Owner, April 7, 2020
I saw a video on the 12.7x42(Beowulf) cartridge and knew I had to have this upper. When it came I mounted it on the lower I had waiting, grab the factory ammo and a variety of hand loads I had loaded up and headed to the range. It worked flawlessly, ...
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1/1 found this helpful
Helpful Positive Review
Beowulf clone by Hamhead, Verified Owner, June 27, 2018
It's awesome and the best part of this item is it's half price what Alixander arms wants for this caliber. Same puppy only much less expensive here at optics planet. The recoil is about equal to a 20 gauge shotgun so it's not bad considering it was d...
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1/3 found this helpful
Helpful Positive Review
You want some fun, buy this upper! by Snoopdogg, December 30, 2017
It's the same as a 50 Beowulf. The 50 Beowulf ammo is much more inexpensive than the 450 Bushmaster or 458 Socom, that's a plus. Also, I just had to have a 50 cal in my AR-15. Beyond that, I can hunt with this gun for deer, bear, elk, hogs or anythin...
Read More...
1/2 found this helpful
Read All 12 Reviews
Caliber: 12.7x42mm Barrel Length: 16 inBarrel Twist Rate: 1-20 Finish: Anodized Color: Black Model: First-Gen Hybrid Rail System (FHR) Handguard Length: 16 inGun Rail: KeyMod Additional Features: w/BCG and CH Condition: New Magazine Included: No

Code: 2CS-URC-HP4-CFU16-12-7X42-12FHR

MPN: CFU16-12.7X42-12FHR

UPC: 816903021130

Product No Longer Available

Product Info for Radical Firearms 16 in. 12.7x42 (.936) Upper Assembly

Introducing Radical Firearms 12.7x42 Complete Upper. After a year of development, a few thousand rounds, and a pretty sore shoulder, we feel this is absolutely one of the best uppers we ever offered... This provides a high-quality upper for those looking for more POWER out of their rifle. Comes complete and assembled with Upper Receiver, Forward Assist, Barrel Nut. 16 inch 12.7x42 Barrel and our new Panzer Muzzle Brake to take the bite out of the round. Bolt Carrier Group and Charging Handle come complete with this upper. 16 inch 12.7 x 42 4150 Vanadium Steel Barrel 1 in 20 inch Twist Rate 49/64x20 TPI 12.7 x 42 Chamber HPT/MPI M4 Feed Ramps Low Profile .936 inch Micro Gas Block Stainless carbine-length gas tube Direct Gas Impingement Radical Firearms Panzer 49/64-20 Brake Radical Firearms FHR Hybrid Rail System Custom Forged Upper Receiver with Forward Assist, Shell Deflector Complete 12.7 BCG, MPI, Melonite Coated, Staked Mil-Spec Charging Handleimage

Does not include dust cover.

Package Contents:

  • Radical Firearms 16 in. 12.7x42 (.936) Upper Assembly

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Radical Firearms 16 in. 12.7x42 (.936) Upper Assembly Unavailable & Discontinued Models

List of Unorderable Models

  • Radical Firearms Upper Assembly 16 inch 12.7x42 .936, 12 inch FHR, w/BCG and CH, Black, CFU16-12.7X42-12FHR , MPN: CFU16-12.7X42-12FHR , UPC: 816903021130 , Code: 2CS-URC-HP4-CFU16-12-7X42-12FHR
  • Radical Firearms Upper Assembly 16 inch 12.7x42 .936, 15 inch FHR, w/BCG and CH, Black, CFU16-12.7X42-15FHR , MPN: CFU16-12.7X42-15FHR , UPC: 816903021147 , Code: 2CS-URC-HP4-CFU16-12-7X42-15FHR
  • Open Box, Dealer Demo, Radical Firearms Complete Upper Assembly 16in 12.7x42 ,.936, 1/20 Twist, 15in MHR, M-LOK, Panzer Brake, Black, CFU16-12.7X42-15MHR , MPN: CFU16-12.7X42-15MHR-DMO , Code: 2CS-URC-HP4-CFU16-12-7X42-15MHR-DMO
  • Radical Firearms Complete Upper Assembly 16in 12.7x42 ,.936, 1/20 Twist, 15in MHR, M-LOK, Panzer Brake, Black, CFU16-12.7X42-15MHR , MPN: CFU16-12.7X42-15MHR , UPC: 816903024391 , Code: 2CS-URC-HP4-CFU16-12-7X42-15MHR
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