AR-Type Steel Barrel Calibers & Lengths

AR-15® Stainless Steel Barrel Calibers & Lengths

Type Caliber Barrel Length Twist Gas System Length Deep Feed Ext. Gas Journal Dia. Muzzle Thread Weight Part Number MSRP
PR15 223wylde 11.5 7 Carbine .750 ½ x 28 1lbs-8oz 100387 $520
PR15 223wylde 14.5 7 Mid .750 ½ x 28 2lbs-5oz 101551 $520
PR15 223wylde 14.5 8 Mid .750 ½ x 28 2lbs-5oz 101575 $520
PR15 223wylde 16 7 Mid .750 ½ x 28 2lbs-8oz 101582 $520
PR15 223wylde 16 8 Intermediate .750 ½ x 28 2lbs-10oz 101605 $520
PR15 223wylde 16 8 Mid .750 ½ x 28 2lbs-8oz 100066 $520
PR15 223wylde 18 7 Rifle .750 ½ x 28 2lbs-15oz 101636 $520
PR15 223wylde 18 8 Rifle .750 ½ x 28 2lbs-15oz 100455 $520
PR15 223wylde 20 7 Rifle .750 ½ x 28 3lbs-3oz 100462 $520
PR15 223wylde 20 8 Rifle .750 ½ x 28 3lbs-3oz 101704 $520
PR15 204 Ruger 20 10 Rifle .750 ½ x 28 3lbs-3oz 109113 $520
PR15 204 Ruger 24 10 Rifle .750 ½ x 28 3lbs-11oz 109120 $520
PR15 22 Nosler 20 8 Rifle +22 .750 ½ x 28 3lbs-5oz 100479 $520
PR15 22 Nosler 22 8 Rifle +22 .750 ½ x 28 3lbs-8oz 100486 $520
PR15 224 Valkyrie 20 7 Rifle +12 .750 ½ x 28 3lbs-4oz 110270 $520
PR15 6.5 Grendel 20 8 Rifle .750 ⅝ x 24 3lbs-3oz 100516 $520
PR15 300BLK 12.5 7 Pistol .750 ⅝ x 24 1lbs-8oz 100530 $520
PR15 300BLK 16 8 Carbine .750 ⅝ x 24 2lbs-4oz 100578 $520
PR15 6.8 SPC 18 10 Rifle .750 ⅝ x 24 2lbs-14oz 110256 $520
PR10 6 CM 22 7 Rifle +32 .875 ⅝ x 24 4lbs-0oz 101452 $545
PR10 6 CM 22 8 Rifle +32 .875 ⅝ x 24 4lbs-0oz 101476 $545
PR10 6 CM 24 7 Rifle +32 .875 ⅝ x 24 4lbs-3oz 101490 $545
PR10 6 CM 24 8 Rifle +32 .875 ⅝ x 24 4lbs-3oz 101513 $545
PR10 6.5 CM 20 8 Rifle +22 .875 ⅝ x 24 3lbs-10oz 100622 $545
PR10 6.5 CM 20 8 Rifle +22 X1 .875 ⅝ x 24 3lbs-10oz 101353 $545
PR10 6.5 CM 22 8 Rifle +22 .875 ⅝ x 24 3lbs-14oz 100646 $545
PR10 6.5 CM 22 8 Rifle +22 X1 .875 ⅝ x 24 3lbs-14oz 101384 $545
PR10 6.5 CM 24 8 Rifle +22 .875 ⅝ x 24 4lbs-1oz 101421 $545
PR10 6.5 CM 24 8 Rifle +22 X1 .875 ⅝ x 24 4lbs-1oz 101438 $545
PR10 260 Rem 20 8 Rifle +22 .875 ⅝ x 24 3lbs-10oz 100592 $545
PR10 260 Rem 20 8 Rifle +22 X1 .875 ⅝ x 24 3lbs-10oz 101162 $545
PR10 260 Rem 22 8 Rifle +22 .875 ⅝ x 24 3lbs-14oz 100615 $545
PR10 260 Rem 22 8 Rifle +22 X1 .875 ⅝ x 24 3lbs-14oz 101186 $545
PR10 260 Rem 24 8 Rifle +22 .875 ⅝ x 24 4lbs-1oz 101230 $545
PR10 260 Rem 24 8 Rifle +22 X1 .875 ⅝ x 24 4lbs-1oz 101247 $545
PR10 308 Win 16 10 Intermediate .750 ⅝ x 24 3lbs-4oz 101254 $545
PR10 308 Win 18 10 Rifle .750 ⅝ x 24 3lbs-10oz 100677 $545
PR10 308 Win 18 10 Rifle .875 ⅝ x 24 4lbs-2oz 101285 $545
PR10 308 Win 20 10 Rifle .875 ⅝ x 24 4lbs-6oz 101315 $545

AR15 RL+1

PR10 RL+2

PR15 RL+3

Proof Reseaerch AR-type barrels are designed to be used with standard, ‘full’ mass bolt carrier groups, standard mass buffers and standard rate recoil springs to ensure the best reliability and accuracy. All components of the buffer system must match, i.e. do not mix AR-10 and AR-15, or carbine and rifle length parts. Light-weight or variable-weight bolt carriers are not recommended.
1 Proof Research builds AR barrels with standard DPMS™-compatible barrel extensions and gas system lengths. A select number of AR-10 barrels are available with deep feed barrel extensions for compatibility with Armalite, Falkor, F-1 and others. Please check with the manufacturer of your rifle platform to see if these configurations are compatible.
2Custom length gas tube included.

Online Dealers

Our distributors carry a selection of barrels for IMMEDIATE DELIVERY. Factory-direct orders are currently averaging 16 weeks, for factory lead times or to place a factory order call (406) 756-9290 between 9AM and 4PM Mountain Time or email info@proofresearch.com.

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