New: MPA Matrix Chassis

by
posted on October 3, 2019
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
2-mpa.jpg

On Saturday, September 28 at the 2019 Precision Rifle Expo in Blakely, GA, MasterPiece Arms introduced what it has deemed "its most revolutionary chassis configuration yet," the MPA Matrix. Based on the company's BA chassis system, the new Matrix offers precision shooters multiple configurations between grips, thumb rests and trigger finger supports. Think of it as an enhanced version of the BA built for the Remington Short Action. MSRP is $1,200 to $1,400; depending on options.

MPA Matrix Chassis
Additional grips, thumb rests and trigger finger supports can be purchased separately.


MPA has a convenient hand measurement chart to help identify which grip configuration will work best for you. The MPA Matrix Chassis features five different grip options (three swept and two vertical), three different thumb rest designs and four different trigger finger supports. The MPA buttstock includes an adjustable cheek riser and also length of pull adjustment. The recoil pad is adjustable for height and cant. Additionally, there are M-Lok slots along the side of the chassis fore-end and barricade stop holes along the bottom. The fore-end of the chassis is two inches longer than the standard BA or BA Competition chassis.

MPA Matrix Chassis
There's 1.5 inches of Acra Rail built into the chassis, and the V-Bedding system. The Matrix is compatible with any AICS-type magazines, but none are included.


The MPA Matrix chassis is CNC-machined from 6061 aluminum. The weight is 6.2 pounds, and the length of pull ranges from 13.5 to 14.75 inches (can be shortened to 12.5 inches by special request).

Cerakote colors are available for the MPA Matrix chassis: graphite black, flat dark earth, burnt bronze, tungsten, gunmetal, sniper green, NRA blue and USMC red. Camouflage patterns are also available with a $450 additional fee.

If you are interested, be ready to wait. MPA chassis lead times vary anywhere from 2 to 6 weeks, according to the website. However, MPA is in the process of doubling capacity by moving into a larger facility. Learn more at MasterPieceArms.com.

All photos courtesy of Team POI.


See more: MasterPiece Arms BA PMR Competition Rifle

Latest

2026 NRASBR 3 P Results Lede
2026 NRASBR 3 P Results Lede

Erin Gestl Erases Four-Point Deficit to Win NRA Smallbore Three-Position Championship

Erin Gestl overturns a four-point deficit on any sight day to win the 2026 NRA National Smallbore Three-Position Championship with 2360-137X.

USPSA Executive Director Alan Turner on Building for the Future

USPSA Executive Director Alan Turner, II, details new bylaws, a CTO promotion and a formal Nationals selection process supporting record growth.

Dewar International Match: A Rivalry Fought by Mail for 100 Years

A 1952 photo highlights that year’s Dewar Team, a U.S.-Britain smallbore rivalry fought entirely by mail since 1909 and still contested today.

Team Winchester/White Flyer’s DeMichiel Wins FITASC Title at NSCA North Central Regional

Kevin DeMichiel took the FITASC title and finished runner-up in both the Main Event and Five-Stand at the 2026 NSCA North Central Regional.

Palmyra Duo Takes High Junior Title and a Pair of Ruger 10/22s at NRA Smallbore 3-Position Nationals

Rain, wind and razor-thin margins mark team day at the 2026 NRA Smallbore 3-P Nationals.

Walton County Sweeps 2026 Daisy BB Gun Nationals

Violet Combs tops an all-girl podium and Walton County posts a perfect team test score to sweep the 59th Daisy BB Gun Nationals.

Interests



Get the best of Shooting Sports USA delivered to your inbox.