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 ARC Scopemounting 6
2026 ARC Scopemounting 6

NRA America’s Rifle Challenge: Kyle Lamb’s Guide to Mounting a Scope for ARC

Kyle Lamb walks through optics mounting with practical advice on leveling, eye relief and preventing scope shift during ARC competition.

Politics, Weather and Rising Stars Mark a Turning Point: 1990 National Matches

The 1990 National Matches at Camp Perry saw funding threats, severe weather cancellations and major victories by shooters like David Tubb and Jim Meredith as a new decade began.

Review: GP Arms Patriot Rebel

The GP Arms Patriot Rebel is a mid-level 2011 built for Limited Optics, delivering 1,000-plus rounds of flawless reliability including a full USPSA Nationals.

Milan Cortina 2026: Team USA’s Masters Defends Paralympic Biathlon Title With Perfect Shooting

Oksana Masters defended her Paralympic biathlon sprint title with flawless shooting at Milan Cortina 2026, with teammate Kendall Gretsch taking silver.

MidwayUSA Foundation Sends $7.5 Million to 995 Youth Shooting Teams Across 46 States

MidwayUSA Foundation concludes its February grant cycle with more than $7.5 million paid to youth shooting teams nationwide, funded by endowments that allow teams to draw 5% annually in perpetuity.

2026 NSCA Championship Tour Opens in March With Eight Stops and Expanded Winchester Ladies Cup

The NSCA Championship Tour, Powered by Winchester returns for 2026 with eight stops, $40,000 in added Ladies Cup payouts and 120 cases of ammunition for women competitors.

Interests



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