Barrel PartsApex Tactical Specialties IncSold by Brownells

Apex Tactical Specialties Inc

S&W M&P Compact 3.6'''' Direct Drop-In Threaded Barrel

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

Direct Drop-in

Replacement for factory barrel; no

Fits M&p

A factory 3.6" barrel

Fits Classic

A factory 3.5" barrel

Threaded 1/2-28

To accept standard muzzle attachments

Undercut Thread

Intercept accommodates a wide variety

$218.50
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SKU: 100040771

Overview

This threaded replacement barrel is designed for M&P Compact 9mm pistols that use a factory 3.6-inch barrel in the M&P M2.0 Compact or a 3.5-inch barrel in the Classic M&P Compact. It is intended as a direct drop-in part, so no fitting is required, making it a practical option for shooters who want to add standard muzzle attachments without altering the pistol. The barrel features a 1/2-28 thread pattern, a 1:10" twist rate, and a black Melonite finish. Built from cold hammer forged stainless steel blanks, it offers a straightforward upgrade path for range use or other setups that call for a threaded barrel.

Why Hunters Choose the Apex Tactical Specialties Inc

Direct Drop-in

Replacement for factory barrel; no

Threaded 1/2-28

To accept standard muzzle attachments

Compatible M&p

M&P M2.0 Compact 9mm and

Black Melonite

Finish adds durability-focused protection

1:10" Twist

Rate specified by the manufacturer

Key Features

  • Direct drop-in replacement for factory barrel; no fitting required.
  • Fits M&P M2.0 Compact 9mm pistols with a factory 3.6" barrel.
  • Fits Classic M&P Compact 9mm pistols with a factory 3.5" barrel.
  • Threaded 1/2-28 to accept standard muzzle attachments.
  • Undercut thread intercept accommodates a wide variety of attachments.
  • Black Melonite finish for longevity and durability.

Best Used For

  • M&P Compact 9mm owners wanting a direct drop-in threaded barrel replacement without fitting
  • Shooters using M&P M2.0 Compact pistols with a factory 3.6-inch barrel
  • Classic M&P Compact 9mm users with a factory 3.5-inch barrel seeking threaded muzzle compatibility
  • Users needing a 1/2-28 threaded barrel for standard muzzle attachments
  • Hunters and range shooters prioritizing a compact pistol barrel with a black Melonite finish

Specifications

Blade FinishBlack Melonite
Compatible WithM&P M2.0 Compact 9mm pistols with a factory 3.6" barrel; Classic M&P Compact 9mm pistols with a factory 3.5" barrel
Fitting RequiredNo fitting required
Length3.6"
MaterialCold Hammer forged stainless steel blanks
Replacement TypeDirect Drop-in replacement of factory barrel
Thread InterceptUnder cut thread intercept to accommodate a wide variety of attachments
Thread PatternA 1/2-28
Twist Rate1:10"

Pros

  • Direct drop-in replacement for factory barrel; no fitting required.
  • Threaded 1/2-28 to accept standard muzzle attachments.
  • Compatible with M&P M2.0 Compact 9mm and Classic M&P Compact 9mm.
  • Black Melonite finish adds durability-focused protection.
  • 1:10" twist rate specified by the manufacturer.
  • Undercut thread intercept accommodates a wide variety of attachments.

Considerations & Trade-offs

  • Threaded 1/2-28 configuration is intended for standard muzzle attachments, so compatibility should still be checked against the specific device being used.
  • Designed as a direct drop-in replacement, but it is limited to M&P M2.0 Compact 9mm pistols with a factory 3.6" barrel and Classic M&P Compact 9mm pistols with a factory 3.5" barrel.
  • The black Melonite finish is described for longevity and durability, but it does not change the need to confirm fit and intended use with your setup.
  • The undercut thread intercept is meant to accommodate a wide variety of attachments, yet attachment clearance can still vary by accessory design.

Suggested Comparisons

  • Threaded pistol barrels
  • Replacement handgun barrels
  • M&P Compact 9mm pistol parts

Suggested Accessories

  • Thread protector
  • Muzzle device
  • Cleaning kit
  • Pistol case

Frequently Asked Questions

Which pistols is this barrel made to fit?

It is listed as a direct drop-in replacement for M&P M2.0 Compact 9mm pistols with a factory 3.6" barrel and Classic M&P Compact 9mm pistols with a factory 3.5" barrel.

Does this barrel require fitting or gunsmithing?

The product description says it is a direct drop-in replacement of the factory barrel, with no fitting required.

What threading does the barrel use?

It is threaded 1/2-28 to accommodate standard muzzle attachments.

What twist rate is specified?

The listed twist rate is 1:10".

What finish does the barrel have?

The barrel is described as having a Black Melonite finish.