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CMMG, Inc PS90 5. 10.4in. Barrel Up to 17% Off w/ Free Shipping — 2 models

CMMG, Inc Barrel, 10.4in. PS90 4150CMV CL 1:9, 5.7x28 57DF1C7
CMMG, Inc Barrel, PS90, 10.4in., 1-9 Twist, 5.7x28 Chamber, Threaded M12x1.0 LH, 4150CMV + Thread Adapter, PS90
CMMG, Inc Barrel, 10.4in. PS90 4150CMV CL 1:9, 5.7x28 57DF1C7
1 of 2 images
CMMG, Inc Barrel, 10.4in. PS90 4150CMV CL 1:9, 5.7x28 57DF1C7
CMMG, Inc Barrel, PS90, 10.4in., 1-9 Twist, 5.7x28 Chamber, Threaded M12x1.0 LH, 4150CMV + Thread Adapter, PS90
2 of 2 images
CMMG, Inc Barrel, PS90, 10.4in., 1-9 Twist, 5.7x28 Chamber, Threaded M12x1.0 LH, 4150CMV + Thread Adapter, PS90

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Questions & Answers
I was told after SBR conversion the length of the PS90 is 19.7" but I see an answer on here for 21.3". Which is accurate for ATF form 1? Expert Answer

We are not able to determine what the overall length for your firearm will be with this barrel installed.

by Nick B., Gear Expert, October 15, 2021
See 1 More Answer
After install of this 10.4” barrel what is the overall length of the PS90? Expert Answer

This barrel would bring the length of the PS90 roughly to 21.3 inches.

by Julia, Gear Expert, December 23, 2020
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review
Awesome Barrel! by TMHonfire, Verified Owner, March 12, 2018
If you are looking to SBR your FN PS90 to a P90 look, the CMMG 10.4 inch barrel is the one to get. I have shot everything form SB193 to SS190 5.7x28mm from it without issue. You will also need to order the CMMG FH or the thread adaptor to finish your...
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6/7 found this helpful
Helpful Positive Review
Very pleased by Tx, Verified Owner, July 11, 2016
I decided to go with the cmmg barrel on my p90 cause I didn't want any flaking of the chrome lining on my factory 16" by cutting it down. Fit and finish is great. Fired 150 rounds with consistent grouping.
1/2 found this helpful
Helpful Positive Review
FNH PS90 Barrel by Chris Lee, Verified Owner, May 2, 2018
This was a great upgrade to my PS90 once I got my tax stamp back.Excelent product at a good price and fast shipping . Instalation was very easy and strait forward if you have basic armorer tools just be sure and use a piece of wooden dowel rod to pus...
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9/9 found this helpful
Most Recent Reviews
awesomeness by Dave, Verified Owner, April 21, 2026
Buying this barrel from optics planet was less expensive than I could find anywhere else. Same great quality, nothing less I'd expect. Thanks!
Most Recent Reviews
Great conversion by Dr Pepper1889, Verified Owner, April 22, 2025
Glad a manufacturer made this. It is not a hard install. Only issue is the ATF wait. This is second one I have bought and installed after approval. Makes the PS90 look like it is suppose to. Great product.
Most Recent Reviews
A Great Option for your PS90 SBR Project by Rob1547, Verified Owner, February 23, 2025
Great barrel option. I recently purchased my first PS90, after receiving my Form 1 SBR approval from the ATF (and laser engraving my firearm, etc.,), I purchased this CMMG Barrel from OpticsPlanet. The CMMG 10.4" barrel is really a great option, a...
Read More...
Read All 13 Reviews

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Product Info for CMMG, Inc PS90 5. 10.4in. Barrel

Great choice for your PS90 SBR project. Pair this with a CMMG PS90 Flash hider or thread adapter to complete your SBR.image

Specifications for CMMG, Inc PS90 5. 10.4in. Barrel:

Manufacturer: CMMG
Color: Grey
Barrel Length: 10.4 in
Barrel Twist Rate: 1-9
Barrel Material: 4140 Chrome Moly
Gun Model: FN PS90

CMMG, Inc PS90 5. 10.4in. Barrel, 2CM-BRI-57DF1C7

  • 10.4″
  • 4140 Chrome Moly
  • Salt Bath Nitride Finish
  • 1:9 Twist
  • 5.7×28 Chamber
  • Threaded M12x1.0 LH

Package Contents:

  • CMMG, Inc PS90 5. 10.4in. Barrel, 2CM-BRI-57DF1C7

What firearm models does the manufacturer say CMMG, Inc PS90 5. 10.4in. Barrel is compatible with?

The manufacturer says that CMMG, Inc PS90 5. 10.4in. Barrel is compatible with FN PS90

CMMG, Inc PS90 5. 10.4in. Barrel Orderable Models

List of Orderable Models

  • CMMG, Inc Barrel, PS90, 10.4in., 1-9 Twist, 5.7x28 Chamber, Threaded M12x1.0 LH, 4150CMV, 57DF1C7 , MPN: 57DF1C7 , UPC: 815835017082 , Code: 2CM-RTB-57DF1C7
  • CMMG, Inc Barrel, PS90, 10.4in., 1-9 Twist, 5.7x28 Chamber, Threaded M12x1.0 LH, 4150CMV + Thread Adapter, PS90 , MPN: 57DF1C7-KIT1 , Code: 2CM-RTB-57DF1C7-57DF1C7-KIT1
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Last updated 2026-10-14 UTC.