MasterPiece Arms
Manufacturer of precision bolt action chassis and rifles, MAC-style pistols, accessories and more.
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MPA Brass Catcher
$239.99 Add to cartTired of losing brass at your PRS, NRL or Club/Regional Series event? The MPA Brass Catcher is designed for you….
Attaches via the scope base pic rail on your bolt gun. The wire frame that holds the pouch is adjustable “front to back”and “up and down.”
Subtle adjustments can also be made to the wire frame to get the exact fit you want.
The hinge will position the brass catcher closed (up against the ejection port) or open (90 degrees to the ejection port) for easy removal of the brass after your stage.
Holds 15+ pieces of full size short action caliber brass (308, 6.5 & 6mm Creedmoor, etc) or more of smaller brass types such as 6BR, 6BRA, Dasher, etc.
Works only with short action cartridges.
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Sale!
MasterPiece Arms BA Comp Chassis – MPA Rem 700 Short / Long
Price range: $1,299.00 through $1,390.00 Select options This product has multiple variants. The options may be chosen on the product page- This chassis will fit Remington 700, Defiance Deviant, Bighorn TL3, Surgeon 591, Curtis Custom, and Impact Precision Short Actions.
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MasterPiece Arms BA COMP Chassis COMPLETE Internal Weight Tuning KIT – MPA
$229.99 Add to cartThe Complete Weight Tuning Kit for the full size BA/Comp Chassis & ESR Chassis includes the following:
- Steel Enhanced Bag Rider – 1.2 lbs
- Steel Monopod Weight – 1 lb
- Front Fore-end Weight – 1.2 lbs
- Rear Fore-end Weight – 1 lb
- 8 Front Fore-end clamps
- 8 Button Head Cap Screws for the clamps
- Fasteners for Attaching the Bag Rider and Monopod Weight
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Sale!
MasterPiece Arms Matrix Chassis
Price range: $1,449.00 through $1,860.00 Select options This product has multiple variants. The options may be chosen on the product pageThis is and enhanced version version of our highly successful BA Chassis System.
The Matrix Chassis was designed as a the most revolutionary chassis ever produced. With the multitude of configurations in grips, thumb rests and trigger finger supports, the primary interface between the shooter and the rifle (the grip) has over 100 different options. Please refer to the photos above to see our data on shooter preference on the grips, thumb rests, and trigger finger supports.
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MasterPiece MPA Matrix Professional Chassis
$2,095.00 Select options This product has multiple variants. The options may be chosen on the product pageMasterpiece Arms Chassis have been the gold standard for Long Range Shooters for the past 8 years. In the PRS, which is the testing ground for the best rifle equipment produced, the MPA Chassis is the #1 Chassis (used by the most shooters), won more 1 and 2 Day matches and the most AG Cup Matches since the series inception. Our Chassis Technology is market leading, allowing shooters who run our chassis to hit more targets, win more matches, and harvest more trophies.
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MasterPiece Arms MATRIX Chassis COMPLETE Internal Weight Tuning KIT – MPA
$174.99 Add to cartThe Complete Weight Tuning Kit for the full size BA/Comp Chassis & ESR Chassis includes the following:
- Steel Enhanced Bag Rider – 1.2 lbs
- Steel Monopod Weight – 1 lb
- Front Fore-end Weight – 1.2 lbs
- Rear Fore-end Weight – 1 lb
- 8 Front Fore-end clamps
- 8 Button Head Cap Screws for the clamps
- Fasteners for Attaching the Bag Rider and Monopod Weight
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MasterPiece Arms ( MPA ) EVG Left hand insert
$24.99 Add to cartThis insert is designed to be used with a standard Right Handed EVG (Enhanced Vertical Grip) for shooters who want the Thumb Notch and Trigger Finger support on the left side of the grip surface.This 3D printed component will attach to your chassis via 2 oblong bosses on the insert plus double sided 3M PSA adhesive. Very simple, quick and easy to install.So if you are left handed shooter and want to be able to utilize the benefits of the EVG, this is a great option. -
MasterPiece Arms ( MPA ) Mag Block Insert
$14.00 Add to cartMag Block Insert
This insert is designed to fit into the mag catch slot in Short Action MPA BA, BA Comp & Hybrid Chassis. This part was originally designed to work with Curtis Custom Vector Actions, for customers who wanted to run AICS magazines (on an AW Cut Action), to eliminate the gap before the AICS mags make contact with the action. However, we have also found these very useful for eliminating feeding issues when a competition shooter is putting weight or pressure on either the bottom or front of their magazine, such as when shooting from a barricade.
When installing these, after you have verified fit and tested with a magazine, we recommend that you remove the insert and place some adhesive to the top flat surface to make contact with the top of the pocket in the mag slot in the chassis. Superglue or similar is recommended.
Slight polishing may be required for proper fit. You will receive (1) Version 1 and (1) Version 2 inserts with each order. Please watch the video below for installation instructions.
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MasterPiece Arms ( MPA ) 2 round Magazine Extension
$49.00 Add to cartDescription
MPA Mag Extender is designed for 308 Box magazines built by AICS or Accurate Mag â single feed only. (Will not work with AW Mags). Simply remove the existing floorplate, remove the base insert (from the Accurate Mags only), depress the spring into the mag body, slide the mag extender in place and secure with the included 6-32 set screw. Make sure the mag spring has seated itself flush with the bottom of the mag extender.
Produced from 6061 Aluminum. Cerakote Black  and laser engraved.
Increases the magazine capacity to 14 rounds.
Specify Magazine Type (Accurate or AICS)/
There is also a version for 6BR case magazines. To get this extender type, please select the appropriate magazine type on the menu. These 4 Round extenders will work with MPA, Freedom Gunworks and PVA 6BR Kits.
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MasterPiece Arms ( MPA ) Magwell Plate: Hook -for Matrix Pro
$83.99 Add to cartThis magwell plate system is for the BA Comp, ESR, Hybrid and Matrix short action chassis. These plates are designed to protect the magazine and provide the benefit of giving the shooter additional stability when shooting positional stages by digging into the positional bag.
The plates can be purchased individually or a complete kit. See the drop down menu for options.
Machined from Solid 6061 aluminum, black anodized, ready to install.
These magwell plates are designed only for the BA Comp, ESR, Hybrid and Matrix Chassis short action chassis. (Not the Matrix Pro or Hybrid CZ).
These plates may require the purchase of the Magwell Plate System Upgrade to be used on your existing chassis.
If your chassis does not have the 4 drilled and tapped holes around the front action screw hole, you will need to update your chassis.
Here is a link to this product upgrade.
If your chassis does currently have the 4 hole pattern, these are ready to be installed with no modifications.
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Sale!
Gray Ops CNC MasterPiece Arms MPA Side Rail Inserts For MPA BA COMP Chassis- Aluminum – Black
Original price was: $199.00.$139.30Current price is: $139.30. Add to cartPURPOSE:
- Ergonomic gripping locations
- Light weight (1.6 oz each insert)
- Multiple Flush Cup locations for accessories such as the “Sikes Clutch”
FEATURES:
- Machined from 6061 Aluminum
- Black Anodize Hard Coat finish
- Includes (2) two inserts
- Each insert has 6 built in flush cup locations (12 total per pair) for each sling and accessory attachment
- Lightweight at 1.6 ounces per insert
- Hardware to attach to side rails included
NOTES:
- MPA Side rails purchased separately via MPA website
- Inserts only compatible with Side Rails from MPA
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Sale!
MasterPiece Arms Side Rails – For Matrix / ESR Chassis – Black
Original price was: $199.00.$159.00Current price is: $159.00. Add to cartCompetition Side Rails, designed for the Matrix or ESR Chassis, provide enhanced stability when shooting “positional” in PRS or NRL Style competitions.
Adds approximately 75% more width to the bottom of the fore-end, making the rifle more stable when shooting off positional bags. The radius section on the bottom of the rails provides a more comfortable grip of the fore-end when moving and changing positions.
The side rails are compatible with MPA weight tuning system and the Gray Ops CNC Side Rail Weights made specifically for the ESR/Matrix Comp Side Rails, available for purchase separately.
System includes:
- Left and right side rail
- 8 “M-lok Nuts”
- 8 fasteners for attaching the rails to the nuts
- 8 fasteners for attaching to the MPA Internal Weight System.
Compatible only with the Matrix & ESR chassis
Cerakoted black. Other cerakote options, available for an upcharge, include: FDE, Mil Spec OD Green, Gunmetal, Tungsten, Midnight Bronze, NRA Blue, and USMC Red. Please contact MPA if you want a custom color not listed, including Gun Candy.
See below for compatibility with various arca clamp products:
- MPA RAT Clamp & RAT Accessories – Compatible
- Area 419 Knob type Arcalock Clamp – Compatible
- GrayOps Mini Plate Pro – Compatible
- GrayOps Mag Cut Mini Plate – Not Compatible
- GrayOps Amp Elite Multi Plate – Compatible
- GrayOps Arca Rail Clamp – Throw Lever Style – Compatible
- Area 419 Harris Bipod Arca Clamp Kit – Compatible
- Really Right Stuff BTC-Pro Clamp – Not Compatible
- Really Right Stuff EVO-CA Throw Lever Clamp – Compatible
- Really Right Stuff SC-LR Throw Lever Clamp – Compatible
- Really Right Stuff HC-Pro Clamp for Harris Bipod – Not Compatible
- Cyke Pod Bipods – Compatible
- Cruxord Arca Clamp Tripods – Compatible
- Leofoto Acra Throw Lever Clamp Tripods – Compatible
- RRS Arca Throw Lever Clamp Tripods – Compatible
To summarize, most, if not all, throw lever clamps will work with our Comp Side Rails. Most Knob/Thumb Wheel Type Clamps will not function properly.
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MasterPiece Arms BA Ultra Lite Chassis – MPA
Select options This product has multiple variants. The options may be chosen on the product page- This chassis will fit Remington 700, Defiance Deviant, Bighorn TL3, Surgeon 591, Curtis Custom, and Impact Precision Short Actions.
