These rifles are built to order. Please allow 12-16 weeks for completion.

All builds in 6.5mm or smaller carry a 3/8 MOA Accuracy Guarantee. 

All builds larger than 6.5mm carry a 1/2 MOA Accuracy Guarantee.

The MPA BA Custom Build system gives the shooter several options to help design the Ultimate Long Range Precision Rifle. Just pick your action, caliber/chamber, barrel length and contour, trigger, and cerakote customization. 

If you want to have your action bedded, we can also include this in the build. 

Availability/Delivery: Depends on the configuration. If the chamber/caliber is one of our standards, such as a 308, 300WM, 338 Lapua, 6.5 Creedmoor, 6.5x47 Lapua, 243 or 6mm Creedmoor, the delivery will be within 8-12 weeks or sooner. Other caliber configurations could take longer, however we regularly build 6mm Dasher, 6x47, 6 SLR, 6XC, 6 BR, 6.5x284, 6.5 Addiction, 6.5 SAUM, 300 Norma, etc. 

If selecting "Other" Caliber, please specify in order comments. 

For Barrel Taper and Contoured Barrel Number, please refer to the charts in the photos. 


  • Curtis Custom Axiom - Short and Long Actions


  • Trigger Tech Special: 1-3lbs pull


  • MPA/Spencer Barrels - available in a variety of contours, these 416R Stainless Barrels are handlapped to perfection.

FFL Address Required Yes
Shipping Class
Rifle Yes

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MasterPiece Arms Custom Build - BA

  • $2,899.00

Available Options  (Reset)

Tags: masterpiece, arms, custom, build, rifle, ba