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MasterPiece Arms BA Comp Chassis – MPA Rem 700 Short / Long
$1,299.00 – $1,390.00Price 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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Gray Ops CNC MasterPiece Arms Matrix & Matrix Pro Side Rail Weights – Steel
$189.00Original price was: $189.00.$132.30Current price is: $132.30. Add to cartPURPOSE
- Give the perfect balance point to your MPA BA Comp/Matrix/ESR Chassis when combined with the MPA Competition Side Rails
- Added weight Reduces recoil and adds stability
- Added locations for hand gripping
FEATURES
- Machined from 1018 cold rolled steel
- Black Nitride finish for superior corrosion and rust resistance
- Includes 4 weights (two weights per side)
- Each weight has 3 built in flush cup locations (12 total per kit) for each sling and accessory attachment
- Adds 27.4 ounces per 4 weight kit
- BA Comp Kit Dimensions roughly 0.6 x 0.6 x 5.25”
- Matrix/ESR/Matrix PRO Kit Dimensions roughly 0.5 x 0.6 x 6”
- Hardware to attach to side rails included
NOTE
- Side rails (shown in picture) purchased separately from MPA website must be installed to utilize these weights
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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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MasterPiece Arms Matrix Chassis
$1,449.00 – $1,860.00Price 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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Gray Ops CNC – Bag Stop – Mini Plate Mount
$139.99Original price was: $139.99.$97.99Current price is: $97.99. Add to cartIntroducing Gray Ops CNC Bag Stop – Mini Plate Mount, the perfect shooting accessory to enhance stability while avoiding magazine contact, ensuring reliable feeding for your rifle. Designed for use with Mini Plate V2 and Mini Plate PRO, this bag stop is lightweight, expertly contoured, and easy to install with two steel hex bolts.
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Gray Ops 6GT AW Magazine
$259.00 Add to cartThe Gray Ops CNC Bag Stop – Arca Mount is a precision-engineered solution that allows shooters to stabilize their shooting bags without risking contact with the mag, ensuring reliable feeding for 22LR actions and more. Easily mountable to any 1.5” arca rail, this bag stop is designed for convenience and performance.
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Gray Ops CNC MasterPiece Arms BA Comp Side Rail Weights – Steel
$189.00Original price was: $189.00.$132.30Current price is: $132.30. Add to cartPURPOSE
- Give the perfect balance point to your MPA BA Comp/Matrix/ESR Chassis when combined with the MPA Competition Side Rails
- Added weight Reduces recoil and adds stability
- Added locations for hand gripping
FEATURES
- Machined from 1018 cold rolled steel
- Black Nitride finish for superior corrosion and rust resistance
- Includes 4 weights (two weights per side)
- Each weight has 3 built in flush cup locations (12 total per kit) for each sling and accessory attachment
- Adds 27.4 ounces per 4 weight kit
- BA Comp Kit Dimensions roughly 0.6 x 0.6 x 5.25”
- Matrix/ESR/Matrix PRO Kit Dimensions roughly 0.5 x 0.6 x 6”
- Hardware to attach to side rails included
NOTE
- Side rails (shown in picture) purchased separately from MPA website must be installed to utilize these weights
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Gray Ops AICS Magazine Base Pad
$39.99 Select options This product has multiple variants. The options may be chosen on the product pageThe Gray Ops CNC Bag Stop – Arca Mount is a precision-engineered solution that allows shooters to stabilize their shooting bags without risking contact with the mag, ensuring reliable feeding for 22LR actions and more. Easily mountable to any 1.5” arca rail, this bag stop is designed for convenience and performance.
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Gray Ops BR/Dasher AW Magazine
$259.00 Add to cartThe Gray Ops CNC Bag Stop – Arca Mount is a precision-engineered solution that allows shooters to stabilize their shooting bags without risking contact with the mag, ensuring reliable feeding for 22LR actions and more. Easily mountable to any 1.5” arca rail, this bag stop is designed for convenience and performance.
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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 ) 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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Gray Ops AW Magazine Base Pad
$39.99 Select options This product has multiple variants. The options may be chosen on the product pageThe Gray Ops CNC Bag Stop – Arca Mount is a precision-engineered solution that allows shooters to stabilize their shooting bags without risking contact with the mag, ensuring reliable feeding for 22LR actions and more. Easily mountable to any 1.5” arca rail, this bag stop is designed for convenience and performance.
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Gray Ops CNC 90* Send iT Adapter
$89.00Original price was: $89.00.$79.00Current price is: $79.00. Add to cartThe Gray Ops CNC Bag Stop – Arca Mount is a precision-engineered solution that allows shooters to stabilize their shooting bags without risking contact with the mag, ensuring reliable feeding for 22LR actions and more. Easily mountable to any 1.5” arca rail, this bag stop is designed for convenience and performance.
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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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Gray Ops CNC MasterPiece Arms MPA Side Rail Inserts For MPA BA COMP Chassis- Aluminum – Black
$199.00Original 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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Foundation Stocks Samson (MS1) Centurion Grip Black Micarta Full Brass Arca, Insert & Weight Kit – Impact 737 Inlet LEFT HAND
$3,150.00 Add to cart-
The Samson provides the competitive shooter with an easily tunable system that still delivers a shooting experience no other system offers. As so many can be heard saying after the first shot in a Foundation – “It’s just dead!”Key features of the Samson:
- 4-way adjustable recoil pad.
- Buttstock bolt in weight system (4 piece – 11oz total brass)
- Stippled grip with ambidextrous thumb shelf.
- Integrated 15 1/4″ ARCA Rail ( 3lb 2 oz brass / 16 oz aluminum)
- 4-piece side weight system with 8 flush cups/ Sikes Clutch locations ( 4 piece – 30oz brass / 4 piece – oz aluminum)
- 4″ Three Position Micarta Barrel Bridge
- Stippled forend
- Stock fore end bolt in internal brass weights (6 piece – 6oz total)
Current lead time is 6 months and working hard to bring that down!
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Manners Composite Stocks PRS-TCS – Red & Blue , SA, RH
$2,690.00 Add to cartPRS-TCS Features
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Full carbon fiber shell
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MCS-DBM mini chassis
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Weight-tunable 2 way butt
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Weight Tunable Aluminum
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Adjustable Cheek
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True molded-in barrel channel, up- to a 1.25” straight
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Ambidextrous thumb shelves
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Low profile fore end
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3 rear flush cups
Weight Tunable MCS Arca Rail System
Weight-tunable MCS Arca rail system comes standard in aluminum with two 1.8 ounce weights. Rail is designed for weight to be moved front to back to achieve perfect balance. The TCS Arca rail will hold a maximum of 8 weights which allows for a maximum total of 2lbs 2ounces to be added to the fore end of the stock. The PRS-TCS Arca rail comes standard with 2 weights — additional weights may be purchased in sets of 2 from our web store.
Weight Tunable 2-Way Adjustable Butt System
Comes standard with 1 10-oz balance weight. The base system without the balance weight adds about 18 oz to the stock, depending on Length of Pull. Optional additional weights can be added for a max rear weight of about 2 lbs 12 ounces. To accommodate the extra stress put on the stock by the tunable weight system, the butt section of the stock is over-engineered with a full wrap-around shell.
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MasterPiece Arms Side Rails – For Matrix / ESR Chassis – Black
$199.00Original 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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Foundation Stocks Samson (MS1) Centurion Grip Black Micarta Full Brass Arca, Insert & Weight Kit – Impact 737 Inlet RIGHT HAND
$3,150.00 Add to cart-
The Samson provides the competitive shooter with an easily tunable system that still delivers a shooting experience no other system offers. As so many can be heard saying after the first shot in a Foundation – “It’s just dead!”Key features of the Samson:
- 4-way adjustable recoil pad.
- Buttstock bolt in weight system (4 piece – 11oz total brass)
- Stippled grip with ambidextrous thumb shelf.
- Integrated 15 1/4″ ARCA Rail ( 3lb 2 oz brass / 16 oz aluminum)
- 4-piece side weight system with 8 flush cups/ Sikes Clutch locations ( 4 piece – 30oz brass / 4 piece – oz aluminum)
- 4″ Three Position Micarta Barrel Bridge
- Stippled forend
- Stock fore end bolt in internal brass weights (6 piece – 6oz total)
Current lead time is 6 months and working hard to bring that down!
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