Congratulations on buying the coolest firearm on the planet!!!  Now you want to change barrel length or convert to another caliber.

To purchase the correct barrel or caliber conversion kits that will work with your XCR, you need to choose the correct Builder below that matches your XCR by Model (XCR-L or XCR-M) and Upper Receiver Length (Mini, Standard, Mid, or Competition).

Once you’ve chosen the correct builder, you’ll have to enter the following:

• Your Current Caliber
• Your Current Barrel Length
• Your Current Gas Block (this only applies to XCR-M Minis and Standards) and
• Your Current Brass Deflector (We used to have different brass deflectors depending on caliber. Now we have just one for everything except 6 ARC)

After you’ve entered the information above, you’ll enter the information about the new Barrel or Caliber Conversion kit you need. You’ll enter the:

• New Caliber
• New Barrel Length
• New Barrel Contour
• New Gas Block (for some XCR-M Models)
• New Barrel Twist and
• New Muzzle Device

Please note, the Builders will make some choices for you if choices for that item are not allowed. Also, The Builders will add parts necessary for the barrel length or caliber conversion.

Note: These Builders will not work for many older XCRs. Older XCRs may need to be upgraded to current specs before our new Barrels or Caliber Conversion kits will work. If you have an older XCR such as those with a picatinny rail handguard, go HERE to get a quote on upgrading you XCR.

If you have any questions, please contact us at [email protected]