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Accuracy International

Accuracy International: AXMC .308 Caliber Change Kit with Proof 18.5" Barrel

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Axmc .308

Caliber change kit from Accuracy

Includes Ai

Bolt assembly complete for .308

Proof Research

10 twist and 5-groove specification

Barrel Is

Listed as a drop-in Accuracy

Includes 10-round

AI ASR .308 magazine

$1400.00
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SKU: AXMC .308 Caliber Change Kit with Proof 18.5" Barrel

Overview

This caliber change kit is designed for AXMC users who want to configure the rifle for .308 Winchester with the included bolt assembly, Proof Research 18.5-inch barrel, and 10-round magazine. It suits hunters and shooters who need a dedicated setup for a specific cartridge without piecing together separate components. The package is straightforward in scope, focused on compatibility and a drop-in fit for the listed Accuracy International platform. For buyers building around the AXMC system, it provides the core parts needed for a .308 conversion in one kit.

Why Hunters Choose the Accuracy International

Includes Complete

AXMC bolt assembly for .308

Proof Research

18.5-inch barrel with 10 twist

Barrel Is

Specified as a drop-in Accuracy

Uses 5/8-24

Threaded stainless barrel with M30

Includes 10-round

.308 magazine for ASR, AXMC,

Key Features

  • AXMC .308 caliber change kit from Accuracy International
  • Includes AI bolt assembly complete for .308 Winchester
  • Features a Proof Research 18.5-inch barrel with 10 twist and 5-groove specification
  • Barrel is listed as a drop-in Accuracy International fit with M30 breech
  • Includes a 10-round AI ASR .308 magazine
  • Magazine can be used in ASR, AXMC, and AXSR platforms

Best Used For

  • AXMC owners needing a .308 Winchester caliber change kit with included bolt and magazine components
  • Shooters configuring a rifle for .308 Winchester use with a drop-in 18.5-inch barrel
  • Users who want a kit compatible with ASR, AXMC, and AXSR magazine use
  • Hunters or range shooters maintaining an Accuracy International AXMC platform with matched components

Specifications

Barrel Length18.5
Barrel MaterialSS
Bolt Assembly28340BL Bolt Assembly Complete, 308WN, 1.6MM FP, AXMC
BreechM30 Breech
Caliber.308
Compatible PlatformsASR-AXMC-AXSR
Drop InAccuracy International Drop In
Groove Count5
Included ItemsAI Bolt: 28340BL Bolt Assembly Complete, Proof Research: 109656 Barrel, AI Mag: 28538BL ASR.308 - 10 Round Mag
Magazine Capacity10 Round
Thread Pitch5/8-24
Twist Rate10

Pros

  • Includes a complete AXMC bolt assembly for .308 Winchester conversion
  • Features a Proof Research 18.5-inch barrel with 10 twist
  • Barrel is specified as a drop-in Accuracy International fit
  • Uses a 5/8-24 threaded stainless barrel with M30 breech
  • Includes a 10-round .308 magazine for ASR, AXMC, and AXSR compatibility

Considerations & Trade-offs

  • This is a caliber change kit, so it is intended for AXMC-compatible use rather than as a standalone rifle component.
  • The included magazine is a 10-round .308 magazine, which may not suit users looking for a different capacity or configuration.
  • The barrel is specified at 18.5 inches, so this kit reflects that setup choice and may not match other preferred barrel lengths.
  • Compatibility is defined in the product data for ASR-AXMC-AXSR use, so fit should be verified against the exact platform and configuration before purchase.

Suggested Comparisons

  • Caliber conversion kits
  • Replacement barrels
  • Bolt assemblies
  • Detachable box magazines

Suggested Accessories

  • Rifle magazine
  • Rifle barrel
  • Bolt assembly
  • Rifle cleaning kit

Frequently Asked Questions

What is included in this AXMC .308 caliber change kit?

The kit includes an AI bolt assembly complete for .308 Win, a Proof Research .308 Win 18.5-inch barrel, and an AI ASR .308 10-round magazine.

What is included in this AXMC .308 caliber change kit?

The kit includes an AI bolt assembly complete for .308 Win, a Proof Research .308 Win 18.5-inch barrel, and an AI ASR .308 10-round magazine.

Is this kit specific to the Accuracy International AXMC?

Yes. The product is identified as an Accuracy International AXMC .308 caliber change kit.

Is this kit specific to the Accuracy International AXMC?

Yes. The product is identified as an Accuracy International AXMC .308 caliber change kit.

What barrel details are listed in the product data?

The listed barrel details are: .308 Win, 18.5 length, 10 twist, 5 groove, 5/8-24 thread, SS, Accuracy International drop in, M30 breech.

What barrel details are listed in the product data?

The listed barrel details are: .308 Win, 18.5 length, 10 twist, 5 groove, 5/8-24 thread, SS, Accuracy International drop in, M30 breech.

What magazine comes with the kit, and what platforms can it be used in?

The kit includes an AI ASR .308 10-round magazine, and the product data says it can be used in ASR, AXMC, and AXSR.

What magazine comes with the kit, and what platforms can it be used in?

The kit includes an AI ASR .308 10-round magazine, and the product data says it can be used in ASR, AXMC, and AXSR.

View all 10 questions