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Questions & Answers
What is LOP when set up? Manufacturer Answer

The LOP for the rifle length stock assembly is 13 inches.

by Phase 5 WSI, Manufacturer, November 27, 2024
What is the overall length of pull when installed? Manufacturer Answer

The overall length of pull for the RMSA is 13 inches

by Phase 5 WSI, Manufacturer, November 27, 2024
Customer Reviews
Helpful Positive Review perfect for a CA featureless build by Johnny Tran, Verified Owner, July 14, 2021
There is few fixed stocks that work well with the juggernaut featureless grip, but this stock is a perfect pair! Because of the grip angel of the juggernaut tactical grip, you will have a hard time hitting the safety due to most fixed stocks extendin...
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2/2 found this helpful
Helpful Positive Review Short and sweet by Jay, February 3, 2024
This was definitely the one I wanted it was short and sweet just like I hoped it was
1/1 found this helpful
Helpful Negative Review STOP......... don't waste your money by vue, Verified Owner, December 30, 2022
have sharp edge that will cut sling webbing when run through the rear stock. No matter how I try and work around is still cut my webbing. The person who design this is never had a rifle before, for sure. I just waste $130. DON'T BUY THIS. wish th...
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1/3 found this helpful
Most Recent Reviews doesnt save weight by Sulaiman Tokhi, Verified Owner, June 1, 2025
If you are saving weight this is not the way to go
Most Recent Reviews great stock for any AR by debo, Verified Owner, October 26, 2024
Great product. I have 3 and work and feel rigid and strong. Highly recommend
Read All 5 Reviews
Gun Model: AR-10 , AR-15 Gun Type: Rifle Condition: New

Code: 1U8-BSC-RMSA-EE

MPN: RMSA

UPC: 813318023292

List: $135.00Save $6.75
$128.25

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Receive $2.57 OP Bucks

Product Info for Phase 5 Weapon Systems Inc RMSA Rifle Mini Stock Assembly AR15/AR10 Rifle

The Phase 5 Rifle Mini Stock Assembly (RMSA) is a combo kit featuring our Universal Mini Stock (UMS) mounted on our HexOne Rifle Length buffer tube (HexOne-R). This pair is an excellent fixed stock solution. The UMS and HexOne-R are precision machined in house from USA sourced raw billet aluminum. The HexOne-R buffer tube is cut from 7075-T7 and the UMS is 6061-T6. The HexOne buffer tube features a hexagonal design that is much thicker and rugged than a mil-spec receiver extension tube. The UMS offers a smaller footprint and bottom curve which makes for a far superior anchor of the stock on the chest, and this allows an operator to get in and out of position with greater ease. The HexOne and UMS undergo a rugged tumbling process that further strengthens the exterior of the parts while leaving the surfaces smooth and snag free.image

WARNING: California`s Proposition 65

Specifications for Phase 5 Weapon Systems Inc RMSA Rifle Mini Stock Assembly AR15/AR10 Rifle 7075 T6 A:

Mfg Item Num:  RMSA
Supplier SKU:  110514
Category:  STOCKS AND FORENDS
Type:  Stock Kit
Firearm Type:  Rifle
Firearm Model:  AR15/AR10
Material:  7075 T6 Aluminum
Finish:  Black

Features of Phase 5 Weapon Systems Inc RMSA Rifle Mini Stock Assembly AR15/AR10 Rifle 7075 T6 A

  • The UMS and HexOne are precision machined in house from USA sourced raw billet aluminum. The HexOne buffer tube is cut from 7075-T7 and the UMS is 6061-T6. The HexOne buffer tube features a hexagonal design that is much thicker and rugged than a mil-spec receiver extension tube making it perfect for any of your rifle length AR platform systems.

Package Contents:

  • Phase 5 Weapon Systems Inc RMSA Rifle Mini Stock Assembly AR15/AR10 Rifle 7075 T6 A
  • Castle Nut End Plate Rifle Buffer Rifle Buffer Spring Allen Wrench

Phase 5 Weapon Systems Inc RMSA Rifle Mini Stock Assembly AR15/AR10 Rifle Orderable Models

List of Orderable Models

Phase 5 Weapon Systems Inc RMSA Rifle Mini Stock Assembly AR15/AR10 Rifle , MPN: RMSA , UPC: 813318023292 , Code: 1U8-BSC-RMSA-EE

Phase 5 Weapon Systems Inc RMSA Rifle Mini Stock Assembly AR15/AR10 Rifle Unavailable & Discontinued Models

List of Unorderable Models

USED Phase 5 Weapon Systems Inc RMSA Rifle Mini Stock Assembly AR15/AR10 Rifle 7075 T6 A, EDEMO2, Used, Condition Fair , MPN: RMSA-EDEMO2 , Code: 1U8-BSC-RMSA-EE-EDEMO2
DEMO, Phase 5 Weapon Systems Inc RMSA Rifle Mini Stock Assembly AR15/AR10 Rifle 7075 T6 A , MPN: RMSA-DEMO , Code: 1U8-BSC-RMSA-DEMO
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