+1-800-504-5897 Live Chat Help Center Check Order Status
About Us Policies Reviews How To
Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

  • Entire Store
  • ...
  • Apparel & Footwear
  • Astronomy
  • Everything Else
  • Eyewear
  • Hunting Gear
  • Lab Equipment
  • Military Gear
  • Outdoor Gear
  • Photography Equipment
  • Police, EMS & Fire
  • Shooting
  • Sport Optics
  • Sports & Hobbies
TIP
Shopping Cart

Rainier Arms Match Series MK12 SPR .223 Wylde SPR AR-15 Threaded Barrel RAB-M-223-18-R-NF-BLK Color: Black, Fabric/Material: Stainless Steel, w/ Free Shipping

Rainier Arms Match Series .223 Wylde SPR AR-15 Threaded Barrel, 18 inch, MK12 SPR Profile, Rifle Length, 1-8 Twist, 1/2 X 28, Black, Medium, RAB-M-223-18-R-NF-BLK
Rainier Arms Match Series .223 Wylde SPR AR-15 Threaded Barrel, 18 inch, MK12 SPR Profile, Rifle Length, 1-8 Twist, 1/2 X 28, Black, Medium, RAB-M-223-18-R-NF-BLK
Rainier Arms Match Series .223 Wylde SPR AR-15 Threaded Barrel, 18 inch, MK12 SPR Profile, Rifle Length, 1-8 Twist, 1/2 X 28, Black, Medium, RAB-M-223-18-R-NF-BLK
Rainier Arms Match Series .223 Wylde SPR AR-15 Threaded Barrel, 18 inch, MK12 SPR Profile, Rifle Length, 1-8 Twist, 1/2 X 28, Black, Medium, RAB-M-223-18-R-NF-BLK
Rainier Arms Match Series .223 Wylde SPR AR-15 Threaded Barrel, 18 inch, MK12 SPR Profile, Rifle Length, 1-8 Twist, 1/2 X 28, Black, Medium, RAB-M-223-18-R-NF-BLK
Rainier Arms Match Series .223 Wylde SPR AR-15 Threaded Barrel, 18 inch, MK12 SPR Profile, Rifle Length, 1-8 Twist, 1/2 X 28, Black, Medium, RAB-M-223-18-R-NF-BLK
Rainier Arms Match Series .223 Wylde SPR AR-15 Threaded Barrel, 18 inch, MK12 SPR Profile, Rifle Length, 1-8 Twist, 1/2 X 28, Black, Medium, RAB-M-223-18-R-NF-BLK
1 of 6 images
Rainier Arms Match Series .223 Wylde SPR AR-15 Threaded Barrel, 18 inch, MK12 SPR Profile, Rifle Length, 1-8 Twist, 1/2 X 28, Black, Medium, RAB-M-223-18-R-NF-BLK
Rainier Arms Match Series .223 Wylde SPR AR-15 Threaded Barrel, 18 inch, MK12 SPR Profile, Rifle Length, 1-8 Twist, 1/2 X 28, Black, Medium, RAB-M-223-18-R-NF-BLK
2 of 6 images
Rainier Arms Match Series .223 Wylde SPR AR-15 Threaded Barrel, 18 inch, MK12 SPR Profile, Rifle Length, 1-8 Twist, 1/2 X 28, Black, Medium, RAB-M-223-18-R-NF-BLK
Rainier Arms Match Series .223 Wylde SPR AR-15 Threaded Barrel, 18 inch, MK12 SPR Profile, Rifle Length, 1-8 Twist, 1/2 X 28, Black, Medium, RAB-M-223-18-R-NF-BLK
3 of 6 images
Rainier Arms Match Series .223 Wylde SPR AR-15 Threaded Barrel, 18 inch, MK12 SPR Profile, Rifle Length, 1-8 Twist, 1/2 X 28, Black, Medium, RAB-M-223-18-R-NF-BLK
Rainier Arms Match Series .223 Wylde SPR AR-15 Threaded Barrel, 18 inch, MK12 SPR Profile, Rifle Length, 1-8 Twist, 1/2 X 28, Black, Medium, RAB-M-223-18-R-NF-BLK
4 of 6 images
Rainier Arms Match Series .223 Wylde SPR AR-15 Threaded Barrel, 18 inch, MK12 SPR Profile, Rifle Length, 1-8 Twist, 1/2 X 28, Black, Medium, RAB-M-223-18-R-NF-BLK
Rainier Arms Match Series .223 Wylde SPR AR-15 Threaded Barrel, 18 inch, MK12 SPR Profile, Rifle Length, 1-8 Twist, 1/2 X 28, Black, Medium, RAB-M-223-18-R-NF-BLK
5 of 6 images
Rainier Arms Match Series .223 Wylde SPR AR-15 Threaded Barrel, 18 inch, MK12 SPR Profile, Rifle Length, 1-8 Twist, 1/2 X 28, Black, Medium, RAB-M-223-18-R-NF-BLK
Rainier Arms Match Series .223 Wylde SPR AR-15 Threaded Barrel, 18 inch, MK12 SPR Profile, Rifle Length, 1-8 Twist, 1/2 X 28, Black, Medium, RAB-M-223-18-R-NF-BLK
6 of 6 images
Rainier Arms Match Series .223 Wylde SPR AR-15 Threaded Barrel, 18 inch, MK12 SPR Profile, Rifle Length, 1-8 Twist, 1/2 X 28, Black, Medium, RAB-M-223-18-R-NF-BLK

Tap Tap to Zoom

Government Restriction Government Restriction
Questions & Answers
Customer Reviews
Most Recent Reviews
Just buy it, it's that good. by huck, Verified Owner, December 2, 2025
Title says it all. This is a serious step up from mass produced barrels. I have only grouped it a 500yds and it was around 3 inches. Hornady 75's. What else do you want?
Read 1 Review

14% OFF Firearm Parts

See promotion details.
MDEALClick to Copy Coupon Code
Eligible models will have a savings offer and the coupon code to use below. Add the item to your cart and enter coupon code for savings on that select model! Limited time only. Cannot be combined with other promotions or offers.
Color:
Black
Caliber:
.223 Wylde
Barrel Length:
18 in
Barrel Profile:
MK12
Gas System Length:
Rifle Length
Gas Block Journal Size-Diameter:
.750 in
Barrel Twist Rate:
1-8
Barrel Material:
Stainless Steel
Flutes:
No
Gun Make:
AR Platform
Gun Model:
AR-15
Weight:
2.56 lb
Firearms Threads Per Inch:
1/2x28

Code: 4ZM-ATB-GHBNL2-RAB-M-223-18-R-NF-BLK

MPN: RAB-M-223-18-R-NF-BLK

UPC: 744985352913

$260.00

Buy Together and Save

OP Bucks$7.29

Product Info for Rainier Arms Match Series MK12 SPR .223 Wylde SPR AR-15 Threaded Barrel

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.image

Guarantee sub-MOA with factory match ammunition.

Features:

Stainless Steel Match Grade Blank

Length: 18"

Twist: 1:8

Thread Pitch: 1/2 X 28

.750 Gas Block Seat

.223 Wylde Chamber

Rifle Gas System (Gas Tube not Included)

SPR/MK12 Profile

M4 Feed Ramps

Nitride Finish

Weight: 2 lbs 9 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.

We will go toe to toe with anyone and win.

Specifications for Rainier Arms Match Series MK12 SPR .223 Wylde SPR AR-15 Threaded Barrel:

Manufacturer: Rainier Arms
Color: Black
Fabric/Material: Stainless Steel
Caliber: .223 Wylde
Barrel Length: 18 in
Barrel Profile: MK12
Gas System Length: Rifle Length
Gas Block Journal Size-Diameter: .750 in
Barrel Twist Rate: 1-8
Barrel Material: Stainless Steel
Flutes: No
Gun Make: AR Platform
Gun Model: AR-15
Weight: 2.56 lb
Firearms Threads Per Inch: 1/2x28

Package Contents:

  • Rainier Arms Match Series MK12 SPR .223 Wylde SPR AR-15 Threaded Barrel

What firearm models does the manufacturer say Rainier Arms Match Series MK12 SPR .223 Wylde SPR AR-15 Threaded Barrel is compatible with?

The manufacturer suggests that Rainier Arms Match Series MK12 SPR .223 Wylde SPR AR-15 Threaded Barrel is compatible with AR-15

Rainier Arms Match Series MK12 SPR .223 Wylde SPR AR-15 Threaded Barrel Orderable Models

List of Orderable Models

  • Rainier Arms Match Series .223 Wylde SPR AR-15 Threaded Barrel, 18 inch, MK12 SPR Profile, Rifle Length, 1-8 Twist, 1/2 X 28, Black, Medium, RAB-M-223-18-R-NF-BLK , MPN: RAB-M-223-18-R-NF-BLK , UPC: 744985352913 , Code: 4ZM-ATB-GHBNL2-RAB-M-223-18-R-NF-BLK
Compare (0)
1 item has been added
Add at least two items to compare