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American Precision ArmsMuzzle DevicesMid-Range

American Precision Arms Gen 4 Little Bastard Self-Timing Muzzle Brake (6.5mm, 5/8x24)

Self-timing tunable competition brake for 6mm and 6.5mm precision rifles, threaded 5/8x24 with a jam-nut that indexes without shims.

Price
$205
Weight
4.4 oz
Brand
American Precision Arms
Category
Muzzle Devices

Featured in

Features

  • •Self-timing jam-nut design
  • •5/8x24 thread
  • •6.5mm bore (fits 6mm and 6.5 Creedmoor)
  • •Tunable gas-screw system

Capability Boosts

Long Range+1
Suppression+1
Mobility+-1

Recommended For

Outdoor Defense+2
Range Training
training
target shooting
range
Hunting

+6 more

Where to Buy

Compare current prices and availability from retailers we work with.

Optics Planet

American Precision Arms Gen 4 Little Bastard Self Timing Muzzle Brake 6.5mm 5/8x24 Nitrided

$205.00
Unknown
1d ago
View offer

Price History

90-day low $170.31
$205.00$170.318/149/1110/9

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Overview

American Precision Arms built its reputation on the Little Bastard, and the Gen 4 keeps the self-timing jam-nut that made the line a PRS staple. Instead of a crush washer or shim stack, the brake threads onto the 5/8x24 muzzle and locks level against a jam-nut, so a shooter can index the ports perfectly flat without a gunsmith. The tunable gas-screw system lets you bias the gas ports to counter muzzle rise or lateral drift for your specific rifle and load. On a 6.5 Creedmoor Ruger Precision Rifle, that translates to a flat recoil impulse that keeps the reticle on target through the shot so you can spot your own impacts. The nitrided finish resists the carbon and heat that a heavy PRS round count throws at the muzzle.

Key Features

  • Self-timing jam-nut indexes the brake level without shims or crush washers
  • Tunable gas-screw system to bias recoil and muzzle rise per rifle
  • 5/8x24 thread fits the Ruger Precision Rifle and other precision hosts
  • 6.5mm bore covers 6mm Creedmoor and 6.5 Creedmoor
  • Nitrided finish for carbon and heat resistance

Pros

  • +Self-timing design mounts perfectly level with no gunsmithing
  • +Tunable gas screws let you dial out muzzle rise for your load
  • +Proven PRS-grade recoil control that keeps you on target through the shot

Cons

  • −Loud and concussive at the shooter's ears versus a suppressor
  • −Bore and thread SKU must match the barrel and cartridge
  • −Priced above the Area 419 Hellfire Match and basic radial brakes

Detailed Specifications

thread
5/8x24
caliber
6.5mm bore (6mm / 6.5 Creedmoor)
type
Self-timing tunable muzzle brake
Finish
Nitrided (stainless variant available)
manufacturer
American Precision Arms

Pairs Well With

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Compatibility Tags

family: bolt-actionfamily: modern-rifleuse: prsthread: 5/8x24caliber: 65cmcaliber: 6mm

Build Your Custom Configuration

Add the American Precision Arms Gen 4 Little Bastard Self-Timing Muzzle Brake (6.5mm, 5/8x24) to your build and see how it enhances your platform.

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