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Questions & Answers
Is there a reason the twist rate is 1:20 instead of the typical 1:14 for 458 SOCOM? Expert Answer

The twist rate has to do with the ideal grain weight. The 1:20 twist rate is more ideally suited to lower grain weight projectiles without sacrificing performance.

by Kurt Colbourne, Gear Expert, June 11, 2021

Product Discontinued by Manufacturer

Wilson Combat AR Barrel Build Kit has been discontinued by Wilson Combat 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, Rifle Barrels, AR15 Barrels yourself to try and find the perfect replacement for you!

Product Info for Wilson Combat AR Barrel Build Kit

The 458 SOCOM cartridge offers the practical ballistics of the legendary .45-70 in a modern AR platform rifle and is capable of firing 250 to 600 grain .458 caliber bullets in a lightweight, controllable package. For hunting medium to large game, bullets in the 250 grain 400 grain weight range possess devastating killing power. We have found that the .458 SOCOM offers peak downrange performance when firing the purpose built Barnes 300 grain TAC TX bullet in the 1750fps 1800fps velocity range.image

The industry standard 1-14 twist barrels seem to be the best choice for over 350 grain bullets and/or subsonic loads and will shoot all suitable bullet weights acceptably well. We recommend this twist rate if you plan to use a suppressor to eliminate the chance of a baffle strike.

The SOCOM is also capable of launching 500- 600 grain bullets at subsonic velocities for suppressed or tactical use.

Building the .458 SOCOM takes only two caliber specific parts-a .458 specific bolt and barrel- Wilson Combat is further optimizing their .458 SOCOM rifles by adding an adjustable gas block, extra power action spring and straight gas tube as a standard reliability upgrade. Having the ability to easily adjust your gas volume allows the end user to fine tune their carbine's bolt velocity for a specific loads power.

Minor machining has also been performed to the ejection port opening of the upper receiver to allow clearance for the larger cartridge.

Package Contents:

  • Wilson Combat AR Barrel Build Kit

Ammunition

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Wilson Combat AR Barrel Build Kit Unavailable & Discontinued Models

List of Unorderable Models

Wilson Combat AR Barrel Build Kit, .458 SOCOM, Recon, 14.7 in, Fluted, 1-22 Twist, RTMB, TR-458K14F22R , MPN: TR-458K14F22R , UPC: 811826027900 , Code: C0-ATB-ARBLKIT-TR-458K14F22R
Wilson Combat AR Barrel Build Kit, .458 SOCOM, Heavy Recon, 16 in, 1-14 Twist, Q-Comp, TR-458K16H14Q , MPN: TR-458K16H14Q , UPC: 811826028075 , Code: C0-ATB-ARBLKIT-TR-458K16H14Q
Wilson Combat AR Barrel Build Kit, .458 SOCOM, Heavy Recon, 16 in, 1-22 Twist, Q-Comp, TR-458K16H22Q , MPN: TR-458K16H22Q , UPC: 811826027924 , Code: C0-ATB-ARBLKIT-TR-458K16H22Q
Wilson Combat AR Barrel Build Kit, .458 SOCOM, Recon, 16 in, 1-22 Twist, Q-Comp, TR-458K16F22Q , MPN: TR-458K16F22Q , UPC: 811826027917 , Code: C0-ATB-ARBLKIT-TR-458K16F22Q
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