We are so confident in our barrels that we offer a 100% money back guarantee within 90 days of purchase. If our barrels don’t meet or exceed your expectations, for any reason, return it for a full refund.
Sign up to be notified when this is back in stock
Email Address*
Mobile Number*
By entering your mobile number above, you consent to receive Rainier Arms back-in-stock text notifications from 35657 to that number. Msg frequency may vary. Msg & data rates may apply. Reply HELP for help and STOP to cancel. See Terms and Conditions & Privacy Policy
Introducing our MOD2 UltraMatch barrel using the finest blank. Our goal is to mass produce them to bring them to market at the most competitive prices. We wanted the best balance between accuracy while keeping the weight down as much as possible.
Guarantee sub-MOA with factory match ammunition.
Features:
Stainless Steel Match Grade Blank
TiN Extension
Length: 18"
Twist: 1:8
Thread Pitch: 5/8x24
.750 Gas Block Seat
6.5 Grendel Chamber
Rifle Gas System (Gas Tube not Included)
M4 Feed Ramps
Proprietary Contour
Bead Blasted Finish/Polished
Fluted
Weight: 2 lbs 4.4 oz
Our Craftsmanship
Rainier barrels are meticulously designed and machined by precision gunsmiths. Our barrels are turned the same way true artisans have made premium rifle barrels for over a century. Each barrel has hand-cut chambers and crowns with the attention to detail that can only come from highly trained human intervention. While most companies strive for faster production time to cut costs, we strive for perfection. There are no shortcuts with our barrels, period.
Review by Stacy T. on 30 Aug 2024review stating Incredible quality and accuracy.
I knew rainier had a good reputation for the ultra match series so when I decided to build an ar platform in a 6.5 grendel I purchased this barrel. I have about 12 ar platform rifles from 223 all the way to 300 wsm and barrels from Mcgowen to proof research and every thing in between. This Rainier ultra match is every bit as good as any of them. I...Read MoreRead more about I knew rainier had a good reputation
was zeroing the rifle this past weekend using multiple brands and bullet weights of ammo (underwood, privi parizan, and hornady x2). Off the bench every round I shot was easily 1moa or better. I have never has a barrel that shot everything well. I settled on the underwood with 110gr controlled chaos because it was the fastest (and most accurate). When I say “most accurate”, we are talking 1/8 of an inch at 100 yards. Thanks you Rainier for a superior product. Read LessRead less about I knew rainier had a good reputation
Review by Stacy T. on 30 Aug 2024review stating Incredible quality and accuracy.
I knew rainier had a good reputation for the ultra match series so when I decided to build an ar platform in a 6.5 grendel I purchased this barrel. I have about 12 ar platform rifles from 223 all the way to 300 wsm and barrels from Mcgowen to proof research and every thing in between. This Rainier ultra match is every bit as good as any of them. I...Read MoreRead more about I knew rainier had a good reputation
was zeroing the rifle this past weekend using multiple brands and bullet weights of ammo (underwood, privi parizan, and hornady x2). Off the bench every round I shot was easily 1moa or better. I have never has a barrel that shot everything well. I settled on the underwood with 110gr controlled chaos because it was the fastest (and most accurate). When I say “most accurate”, we are talking 1/8 of an inch at 100 yards. Thanks you Rainier for a superior product. Read LessRead less about I knew rainier had a good reputation
