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Questions & Answers
Are shims or a crush washer needed for this? I'm going to use it on a mossberg patriot 450 bushmaster for deer hunting. Expert Answer

The Next Level Armament .450 Bushmaster Muzzle Brake will include a crush washer needed for timing/installation.

by Ethan, Gear Expert, January 31, 2023
Will this work on Bergara B-14 bolt action rifle chambered for 450 Bushmaster cartridge? Expert Answer

The Next Level Armament .450 Bushmaster Muzzle Brake 11/16 x 24 tpi will work with a Bergara B-14 in 450 Bushmaster if the muzzle is threaded for 11/16x24.

by Hunter, Gear Expert, February 10, 2023
Customer Reviews
Helpful Positive Review Solid Product by Kody, October 24, 2023
Bought this brake to add to my tac’d out Marlin 1895 SBL. Fit great and plenty of clearance for a .45-70 (.458) even though this is designed for .450 Bushmaster (.452). Comes with a crush washer and installation instructions.
1/1 found this helpful
Helpful Positive Review Great Muzzle Brake by Jimmy, May 11, 2020
If your Ruger American didn’t come with a muzzle brake, this is the one to buy. Cheaper than the factory unit and can see a difference in the pattern and in felt recoil. Is a bit louder, but you don’t notice it when on a deer.
8/9 found this helpful
Helpful Positive Review Great Looks and Performance by Johnny Utah, Verified Owner, March 7, 2021
I bought and installed this brake before even shooting my 16’ 450 bushmaster AR carbine... I read the recoil on the 450 was kinda of harsh and I had good experiences with brakes on my .308 AR’s. The recoil wasn’t bad at all and the rifle shot flawl...
Read More...
1/2 found this helpful
Most Recent Reviews Nice brake by Randy, Verified Owner, September 15, 2025
Bought this brake and installed it with no problems. Operates great and performs well
Most Recent Reviews size is wrong by Brad, December 20, 2024
Its not the right size .589 it’s supposed to be.6875 I have one on my other 450 bushmasters
0/1 found this helpful
Most Recent Reviews Next Level Armament 450BM muzzle brake by Bob McGee, Verified Owner, November 26, 2024
Fantastic production for my rifle. Decreasing both muzzle lift and recoil. Highly recommended be myself.
Read All 12 Reviews
Color: Black Projectile Caliber: .450 Caliber Caliber: .450 Bushmaster Finish: Nitride Fabric/Material: 4140 Steel Threads per Inch: 11/16x24 Gun Make: AR Platform Gun Model: Bushmaster ACR , Universal Outer Diameter: 0.88 inLength: 2 in, 2.5 inWeight: 0.25 lbCondition: New

Code: 3TG-BMB-BSMZBR-NLX502

MPN: NLX502

UPC: 793585908549

List: $80.00Save 13%
$70.00

Product Info for Next Level Armament NLX-11 Muzzle Brake

Designed the NLX-11 to mitigate muzzle rise and recoil. The awesome stopping power of the .450 Bushmaster delivers heavy recoil in the AR15 platform. Tame the beast with the best brake available! We precision machine each NLX-11 450 Bushmaster Brake from 4140 stainless steel raw stock and Nitride finish for a durable, long lasting part. Specifically designed to reduce recoil and muzzle jump, the NLX-11 enables the operator to achieve greater accuracy and deliver better followup shots. Whether hunting hogs or hunting deer, your rifle needs the best brake in the industry. Your shoulder will thank you!image

Notes: Due to the large diameter of the 11/16 x 24 .450 Bushmaster barrel threads, the crush washer is relatively thin compared to traditional .308 and 5.56 crush washers. We recommend hand tighten, then index using no more than 1/3 turn. If you over-tighten past 1/3 turn, you may snap the crush washer. Due to different thread points between barrels, do not try to index simply by our logo. We designed our brake to have a solid ridge up with port holes at 11 and 1 o clock.

Specifications for Next Level Armament NLX-11 Muzzle Brake:

Manufacturer: Next Level Armament
Color: Black
Projectile Caliber: .450 Caliber
Caliber: .450 Bushmaster
Finish: Nitride
Fabric/Material: 4140 Steel
Threads per Inch: 11/16x24
Gun Make: AR Platform
Gun Model: Bushmaster ACR, Universal
Outer Diameter: 0.88 in
Length: 2 in, 2.5 in
Weight: 0.25 lb
Condition: New

Features of Next Level Armament .450 Bushmaster Muzzle Brake 11/16 x 24 tpi:

  • 4140 stainless steel raw stock construction
  • Available in 9mm or .40cal
  • Reduces recoil and muzzle jump

Package Contents:

  • Next Level Armament NLX-11 Muzzle Brake

Next Level Armament NLX-11 Muzzle Brake Orderable Models

List of Orderable Models

Next Level Armament NLX-11 Muzzle Brake, .450 Bushmaster, 11/16x24, Nitride, Black, NLX502 , MPN: NLX502 , UPC: 793585908549 , Code: 3TG-BMB-BSMZBR-NLX502

Next Level Armament NLX-11 Muzzle Brake Unavailable & Discontinued Models

List of Unorderable Models

USED Next Level Armament NLX-11 Muzzle Brake, .450 Bushmaster, 11/16x24, Nitride, Black, NLX502, EDEMO6, Used, Condition Like New , MPN: NLX502-EDEMO6 , Code: 3TG-BMB-BSMZBR-NLX502-EDEMO6
USED Next Level Armament NLX-11 Muzzle Brake, .450 Bushmaster, 11/16x24, Nitride, Black, NLX502, EDEMO5, Used, Condition Fair , MPN: NLX502-EDEMO5 , Code: 3TG-BMB-BSMZBR-NLX502-EDEMO5
USED Next Level Armament NLX-11 Muzzle Brake, .450 Bushmaster, 11/16x24, Nitride, Black, NLX502, EDEMO3, Condition Fair, Used , MPN: NLX502-EDEMO3 , Code: 3TG-BMB-BSMZBR-NLX502-EDEMO-US-D
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