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AR-15/M16 Billet Upper Receiver, .458 Socom

CMT · Upper Receiver

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AR-15/M16 Billet Upper Receiver, .458 Socom

Best price

$131.00at AR15Discounts

checked Nov 13, 2026

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Compare 3 stores

Fits and works with

Caliber
.458 SOCOM · Shop matching ammo
Bolt
.458 SOCOM / .450 Bushmaster · Bolt carrier groups

Specifications

Manufacturer
CMT
Platform
AR-15

Where to buy

StorePriceAvailabilityBuyAdd to build
AR15Discounts Best price 5% off $131.00checked Nov 13, 2026 Check store Buy at AR15Discounts
Dirty Bird $131.00checked Nov 13, 2026 Check store Buy at Dirty Bird
Brownells 17.76% off · ends Nov 15 · exclusions apply $115.99checked Nov 13, 2026 Out of stock Buy at Brownells

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

Dashed line = out of stock. Tracking since Sep 27, 2026.

Show the prices as a table
StoreLatestLowestHighest
AR15Discounts$131.00$131.00$131.00
Brownells$115.99$115.99$115.99
Dirty Bird$131.00$131.00$131.00

Since Sep 27, 2026.

About this part

The AR-15/M16 Billet Upper Receiver, .458 Socom is a .458 SOCOM upper receiver from CMT. It's sold by 3 stores, from $115.99 to $131.00.

From the manufacturer

Enlarged Ejection Port Accommodates .458 SOCOM

Stripped billet upper drops onto standard lower and features expanded ejection port that accommodates .458 SOCOM and other big-bore AR-15 calibers. Integral Picatinny rail provides mounting space, and slick-side design does not require forward assist or ejection port cover, simplifying the build. Has M4 feed ramps, and accepts standard bolt carrier, charging handle and barrel nut, sold separately.


AR-15, Issue:11, Page:001
Big Book Catalog, Issue:70, Page:002

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