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Rainier Arms, LLC

Rainier Arms Match .223 Wylde Mid Barrel - 18

Rainier Arms Match .223 Wylde Mid Barrel - 18
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Availability: Out of stock




Many have asked us to build a barrel with the same workmanship as our UltraMatch barrels while keeping it more affordable. We are able to reach our goal by sourcing a very high end barrel blank at an affordable price. We start off using a high precision match blank in 1:8 twist, machine it to the highest quality and matched with our limited-life time warranty, you have a barrel that is the best value, hands down, in the industry. We are so confident in our Match barrels that we will offer a 100% money back guarantee within 90 days of purchase. If you aren't completely satisfied with the barrel for any reason, return it for a full refund, no questions asked. We offer a 1:8 twist to accommodate to a wide range of bullet weights. Guaranteed to shoot sub-MOA with match grade ammo.


  • Stainless Steel Match Grade Blank
  • Length: 18"
  • Twist: 1:8
  • Thread Pitch: 1/2 X 28
  • .750 Gas Block Seat
  • .223 Wylde Chamber
  • Mid Length Gas System
  • M4 Feed Ramps
  • SPR Contour
  • Bead Blasted Finish
  • Weight: 2 lbs 9 oz

Barrel Care

For your convenience we have published barrel care recommendations for this product. The instructions are in Adobe Acrobat's Portable Document Format (PDF). You will need Adobe Acrobat Reader version 5.0 or higher to view and print the instructions.

If you do not have Adobe's Acrobat Reader, you can download a free copy at

Additional Info

Additional Info

SKU RAB-M-223-M18-SS
Manufacturer Rainier Arms, LLC
Finish Stainless Steel
Barrel Length 18"
Caliber .223 Wylde
Configuration No
Option No
Gas Length Mid
Height No
Rail Length No
Mount No
Profile No
Reticle No
Co Witness No
Size No


Customer Reviews (5)

Oustanding quality and acuracyReview by Bo
I bought this 18" SS Barrel for my SPR build, I used Spike Tactical receiver and BCG. I got lucky the barrel was on sale and got free shipping, package arrive very fest nicely packed with both ends protected caps Just went through initial brake in , I shut trough it bullet ranging from 55gr ,62gr, 69gr to 77gr. Nice tight groups, no hick ups, rifle ran like a sowing machine. I would definitely recommend it to any one ho is looking for quality and accuracy. Great customer service to. (Posted on 9/22/2016)
Very Accurate!Review by Sam
I purchased this barrel for my SPR build I was doing but was worried that maybe I should have spent the extra coin for the "Ultra Match" barrel. Well I was very surprised and very satisfied in the results. I achieved a three shot group measuring 0.27"! So buy with confidence, very nice barrel and sub 1/2"moa accuracy is all I can as of any barrel no matter what the price. (Posted on 10/26/2015)
2 bad barrels in a rowReview by Newt
I received the first barrel and the threads on the muzzle were messed up (bad threading job). I called and let Rainier know and asked for a replacement. 5 days later the second one showed up and it was messed up also exactly like the first one. I called them and they asked me to send it back with my muzzle device so the armorer could "custom" fit the device on the barrel. I understand this isn't a $400 barrel but come on. The worst part is this rifle was suppose to accompany my 14 year old son on a prairie dog hunt and he wasn't able to take it and Rainier never even apologized. (Posted on 9/16/2015)
Ridiculous accuracy for the price.Review by Warden of the North
These barrels are a little stiff at first, chambering/extracting handloads(it will require mortaring) will be difficult but don't fear! After going through the recommended break-in using factory ammo, your handloads will chamber just fine...and once they do...when I do my part, I can get 1/4MOA 5-shot groups with 77gr SMK over a quantity of Alliant Power Pro 2000MR... (Posted on 5/24/2015)
Great ProductReview by Devon
Love the way the barrel shoots! I also bought the lo-pro gas block and gas tube to match and they all worked and fit together perfectly. Would recommend to anyone. (Posted on 4/29/2015)

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