Sentinel Arms Mfg™ Custom Barrel Blanks - EXmatch™ Unturned Barrel Blanks

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Current Lead Time:
2 to 4 Weeks*
Additional Lead Time(s):
Cryogenic barrel stress relief adds 2 to 3 additional week(s)*
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Sentinel Arms Mfg™ Custom Barrel Blanks - EXmatch™ Unturned Barrel Blanks

Order a custom EXmatch™ (Extreme Match) unturned blank. These are the same custom made to order blanks we use for our EXmatch™ precision barrels. Our blanks are precision pull-button rifled, hand lapped, and inspected with a bore scope for imperfections. Each EXmatch™ blank has an outer diameter of 1.250” and can be made up to 32" in length. They are made to our exact specifications with quality US materials. They are 100% made in the USA. These are reliable, durable and extremely high quality blanks. These are the highest quality blanks we offer.

Barrel specs are stamped on the breach end of every blank.

Blank Lengths

Blank length is how it leaves our facility, not finished length. Most gunsmiths require an extra 1" at the muzzle for 1" bell mouth.

Cryogenic Barrel Stress Relief (Cryo)

We also offer cryogenic barrel stress relief (cryo) on barrels. What is cryo? Cryo is a computer controlled scientific dry cryogenic tempering process which relieves stress in firearm barrels. When we cryo a barrel, it is brought down in temperature to -300°F for 24 hours, utilizing dry nitrogen technology, and slowly brought back up to increasingly higher temperatures in controlled increments. By the time the process is complete, which takes 72 hours, the barrel has undergone a 600°F tempering cycle with both hot and cold elements. This allows the material stresses from machining to be relieved which results in a more solid platform with significantly less movement and whipping when the barrel heats up from use. What are the benefits of cryo? With a cryo'ed barrel, the shooter will see a 50 to 60 FPS increase at the muzzle, less fouling, easier cleaning, up to 50% tighter and more accurate groups, DOUBLE the barrel life, and up to 30% lower core temperature. This is a permanent improvement to your barrel. If you are looking for the ultimate in accuracy and durability, cryo is your best option.

Barrel Break-In Procedure

Click here for complete EXmatch™ barrel break in procedures.

Barrel Contours

Click here for complete EXmatch™ barrel contours.

Tech Reference

Click here for EXmatch™ tech information.

* Lead times are the best estimates, but can sometimes be longer than expected

3 Reviews Hide Reviews Show Reviews

  • 5

    Posted by SL

    great blank, great price. this is my third.

  • 5
    as described

    Posted by DW

    exactly what I was looking for. thanks.

  • 5

    Posted by VJ

    Built my 6mm benchrest with an exmatch blank. phenominal accuracy. thank u.