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Precision ArmamentMuzzle DevicesMid-Range

Precision Armament M11 Severe-Duty Muzzle Brake (6.5mm/.264, 5/8x24)

Closed-bottom 6.5mm precision brake for 5/8x24 rifles, rated at over 60% recoil reduction.

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Price
$110
Weight
5.6 oz
Brand
Precision Armament
Category
Muzzle Devices

Features

  • •6.5mm/.264 bore
  • •5/8x24 thread
  • •Over 60% recoil reduction (manufacturer)
  • •2.675 in long, 0.850 in at barrel
  • •5.6 oz

Capability Boosts

Long Range+1
Reliability+1

Recommended For

Outdoor Defense+2
Hunting+2
hunting sidearm+2
small game+2
Home Defense
Duty/Patrol

+16 more

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Precision Armament

M11 Severe-Duty(R) Muzzle Brake

$119.99
Unknown
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Overview

The M11 Severe-Duty is Precision Armament's closed-bottom precision brake for 5/8x24 rifles. A large symmetrical blast baffle and two compensated front baffles push gas to the sides and up, which the maker rates at over 60% recoil reduction, and the closed bottom keeps it from throwing dust when shooting prone. Threads are cut Class-3+ in the same operation as the bore aperture for concentricity, and baffle thickness steps down front to back to limit bullet disturbance.

This is the 6.5mm/.264, which Precision Armament lists for .22 through .264 caliber rifles bore version. It is machined from HTSR 400-series stainless with wrench flats top and bottom, in DLC matte black or bare stainless. Because it has top ports it must be timed, and Precision Armament says not to use crush washers with it; use a shim such as its AccuWasher system or a gunsmith fit. For a radial brake that only needs torquing, the M41 is the sibling to compare.

Key Features

  • Large symmetrical blast baffle plus two compensated front baffles
  • Over 60% recoil reduction (manufacturer)
  • Closed bottom cuts dust signature when prone
  • Class-3+ threads cut with the bore aperture for concentricity
  • HTSR 400-series stainless, DLC black or bare stainless
  • Wrench flats top and bottom

Pros

  • +Closed bottom keeps prone positions clear of dust
  • +Threads and bore machined in one operation for alignment
  • +DLC finish option for wear resistance

Cons

  • −Top ports require timing, and crush washers are ruled out
  • −Heavier than a Hypertap at 5.6 oz

Detailed Specifications

thread
5/8x24
bore
6.5mm/.264
Length
2.675 in
height
1.188 in
width
1.375 in
diameterAtBarrel
0.850 in
weight
5.6 oz
Material
HTSR 400-series stainless steel
Finish
DLC matte black or matte stainless
recoilReduction
Over 60% (manufacturer)
manufacturer
Precision Armament

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Compatibility Tags

family: ar-10family: modern-riflefamily: bolt-actioncaliber: 65cmcaliber: 6arccaliber: 243thread: 5/8x24

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