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Questions & Answers
Can this upper this upper go on my ar10 308 lower? Featured Answer

458 socom ar's are made for the ar 15 platform. Same magazines and lower parts. THe only differences is the bolt, barrel and an enlarge ejection port.

by charliemac10, Verified Owner, July 22, 2018
How much does the 12 inch upper weigh? Expert Answer

It weighs approximately 5.4 lbs.

by Jonathan D., Gear Expert, March 12, 2020
Customer Reviews
Helpful Positive Review Radical Firearms 458 SOCOM upper by Kevin Shogren, Verified Owner, November 12, 2017
Looks well made, I had to de-grease it before use. The only issue I had, was it would not work on my M4 lower. Fortunately it looks ok on my A2 lower. Given a choice I would have used a mid-length gas system. I would give it 4.5 stars.
1/5 found this helpful
Helpful Positive Review Awesome UPPER!!! by Bear, Verified Owner, October 17, 2017
This upper bolts right up to an AR15 lower and runs great. Also uses standard AR MAGS just is single stack. 30 round mag holds 10. Put about 100 rounds so far. Kick is not horrible but i did put a limbsaver kick pad on it. I would definitely buy ano...
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4/5 found this helpful
Helpful Positive Review SWEET ADDITION TO MY COLLECTION by Marty Johns, Verified Owner, September 17, 2017
This is a very well pt together upper that comes ready to shoot minus sights. i like the fact that it comes with the BCG and charging handle. as of the time of writing this review i have not fired the 458 but i am looking forward to it.
2/4 found this helpful
Helpful Positive Review Great product by Woody, November 28, 2017
Upper is just as advertised. Drop it on a low and start shooting. 300gr nozler are a half moa at a 100 yrds. The muzzle brake is great! No kick at all. Like Shooting a 243 off the bench. Very accurate.
2/8 found this helpful
Helpful Positive Review 458 socom upper by shooter, January 12, 2018
works great . 3/4 inch group @ 50 yards . feeds great no issues. muzzle brake works good not much recoil and fit lower well. that is all I can say . got it on sale would buy another for right price I shoot 300 grain hollow point hornady.
1/2 found this helpful
Helpful Positive Review Good 458socom upper by RazorUSMC, Verified Owner, February 14, 2018
It was prices way lower than Radical Firearms sales it for on there website. I have shot it a bunch and it functions Flawlessly with all kinds of 458socom ammo. It is made by Radical Firearms so take that for what it's worth. I have not had any probl...
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2/4 found this helpful
Read All 26 Reviews

Product Discontinued by Manufacturer

Radical Firearms 16 in. 458 SOCOM Upper Assembly has been discontinued by Radical Firearms and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Gun Parts, AR 15 Parts, Rifle Parts, AR15 Upper Receivers yourself to try and find the perfect replacement for you!

ATTENTION! Due to the configuration of products on this page, we are not able to support sales of these items to AK, CA, HI, IL, NY, WA, P.O. Boxes, and U.S. Territories.

Product Info for Radical Firearms 16 in. 458 SOCOM Upper Assembly

Introducing Radical Firearms 458 SOCOM 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, Custom Ejection Port Door, Barrel Nut. 16 inch 458 SOCOM 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 458 SOCOM 4150 Vanadium Steel Barrel. 1 in 14 inch Twist Rate. 5/8x32 TPI. 458 SOCOM Chamber. HPT/MPI. Single Feed Ramp. Low Profile .936 inch Micro Gas Block. Stainless carbine-length gas tube. Direct Gas Impingement. Radical Firearms Panzer 5/8x32 Brake. Custom Forged Upper Receiver with Forward Assist, Shell Deflector. Complete 458 BCG, MPI, Melonite Coated, Staked. Mil-Spec Charging Handle.image

Package Contents:

  • Radical Firearms 16 in. 458 SOCOM Upper Assembly

Ammunition

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Related Products to Radical Firearms 16 in. 458 SOCOM Upper Assembly

Radical Firearms 16 in. 458 SOCOM Upper Assembly Unavailable & Discontinued Models

List of Unorderable Models

Radical Firearms Upper Assembly 16 inch 458 SOCOM .936, 15 inch FHR, w/BCG and CH, Black, CFU16-458SOC-15FHR , MPN: CFU16-458SOC-15FHR , UPC: 816903021109 , Code: 2CS-UFH-16458SO-CFU16-458SOC-15FHR
Radical Firearms Upper Assembly 16 inch 458 SOCOM .936, 12 inch FHR, w/BCG and CH, Black, CFU16-458SOC-12FHR , MPN: CFU16-458SOC-12FHR , UPC: 816903021093 , Code: 2CS-UFH-16458SO-CFU16-458SOC-12FHR
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