+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 AR Match 300BLK Barrel Up to 12% Off w/ Free Shipping — 4 models

Special offer available for this product. Click here to see!
Rainier Arms Match 300BLK Barrel, 16in, 1-8 Twist, 5/8x24, Silver, Medium, RAB-M-300-16-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 10.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-105-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 14.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-145-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 8.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-85-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 16in, 1-8 Twist, 5/8x24, Silver, Medium, RAB-M-300-16-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 16in, 1-8 Twist, 5/8x24, Silver, Medium, RAB-M-300-16-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 16in, 1-8 Twist, 5/8x24, Silver, Medium, RAB-M-300-16-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 16in, 1-8 Twist, 5/8x24, Silver, Medium, RAB-M-300-16-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 16in, 1-8 Twist, 5/8x24, Silver, Medium, RAB-M-300-16-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 10.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-105-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 10.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-105-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 10.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-105-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 10.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-105-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 10.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-105-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 14.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-145-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 14.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-145-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 14.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-145-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 14.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-145-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 14.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-145-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 8.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-85-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 8.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-85-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 8.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-85-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 8.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-85-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 8.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-85-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 16in, 1-8 Twist, 5/8x24, Silver, Medium, RAB-M-300-16-P-NF-SAT
1 of 24 images
Rainier Arms Match 300BLK Barrel, 16in, 1-8 Twist, 5/8x24, Silver, Medium, RAB-M-300-16-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 10.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-105-P-NF-SAT
2 of 24 images
Rainier Arms Match 300BLK Barrel, 10.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-105-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 14.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-145-P-NF-SAT
3 of 24 images
Rainier Arms Match 300BLK Barrel, 14.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-145-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 8.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-85-P-NF-SAT
4 of 24 images
Rainier Arms Match 300BLK Barrel, 8.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-85-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 16in, 1-8 Twist, 5/8x24, Silver, Medium, RAB-M-300-16-P-NF-SAT
5 of 24 images
Rainier Arms Match 300BLK Barrel, 16in, 1-8 Twist, 5/8x24, Silver, Medium, RAB-M-300-16-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 16in, 1-8 Twist, 5/8x24, Silver, Medium, RAB-M-300-16-P-NF-SAT
6 of 24 images
Rainier Arms Match 300BLK Barrel, 16in, 1-8 Twist, 5/8x24, Silver, Medium, RAB-M-300-16-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 16in, 1-8 Twist, 5/8x24, Silver, Medium, RAB-M-300-16-P-NF-SAT
7 of 24 images
Rainier Arms Match 300BLK Barrel, 16in, 1-8 Twist, 5/8x24, Silver, Medium, RAB-M-300-16-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 16in, 1-8 Twist, 5/8x24, Silver, Medium, RAB-M-300-16-P-NF-SAT
8 of 24 images
Rainier Arms Match 300BLK Barrel, 16in, 1-8 Twist, 5/8x24, Silver, Medium, RAB-M-300-16-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 16in, 1-8 Twist, 5/8x24, Silver, Medium, RAB-M-300-16-P-NF-SAT
9 of 24 images
Rainier Arms Match 300BLK Barrel, 16in, 1-8 Twist, 5/8x24, Silver, Medium, RAB-M-300-16-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 10.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-105-P-NF-SAT
10 of 24 images
Rainier Arms Match 300BLK Barrel, 10.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-105-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 10.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-105-P-NF-SAT
11 of 24 images
Rainier Arms Match 300BLK Barrel, 10.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-105-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 10.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-105-P-NF-SAT
12 of 24 images
Rainier Arms Match 300BLK Barrel, 10.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-105-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 10.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-105-P-NF-SAT
13 of 24 images
Rainier Arms Match 300BLK Barrel, 10.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-105-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 10.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-105-P-NF-SAT
14 of 24 images
Rainier Arms Match 300BLK Barrel, 10.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-105-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 14.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-145-P-NF-SAT
15 of 24 images
Rainier Arms Match 300BLK Barrel, 14.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-145-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 14.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-145-P-NF-SAT
16 of 24 images
Rainier Arms Match 300BLK Barrel, 14.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-145-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 14.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-145-P-NF-SAT
17 of 24 images
Rainier Arms Match 300BLK Barrel, 14.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-145-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 14.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-145-P-NF-SAT
18 of 24 images
Rainier Arms Match 300BLK Barrel, 14.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-145-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 14.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-145-P-NF-SAT
19 of 24 images
Rainier Arms Match 300BLK Barrel, 14.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-145-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 8.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-85-P-NF-SAT
20 of 24 images
Rainier Arms Match 300BLK Barrel, 8.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-85-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 8.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-85-P-NF-SAT
21 of 24 images
Rainier Arms Match 300BLK Barrel, 8.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-85-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 8.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-85-P-NF-SAT
22 of 24 images
Rainier Arms Match 300BLK Barrel, 8.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-85-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 8.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-85-P-NF-SAT
23 of 24 images
Rainier Arms Match 300BLK Barrel, 8.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-85-P-NF-SAT
Rainier Arms Match 300BLK Barrel, 8.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-85-P-NF-SAT
24 of 24 images
Rainier Arms Match 300BLK Barrel, 8.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-85-P-NF-SAT

Tap Tap to Zoom

Government Export Restriction Government Export Restriction
Government Restriction Government Restriction
You May Also Like
Best Rated Magpul Industries PMAG GEN M3 AR-15 Rifle Magazine, .300 Blackout, 30 Round, Black, 1 Pack, Polymer, MAG800-BLK-30RD
Magpul Industries PMAG GEN M3 AR-15 Rifle Magazine, .300 Blackout, 30 Round, Black, 1 Pack, Polymer, MAG800-BLK-30RD
(34)
List: $31.99 $15.99 Save Up to 50%
Best Rated Magpul Industries PMAG GEN M3 AR-15 Rifle Magazine, .300 Blackout, 20 Round, Black, 1 Pack, Polymer, MAG1182-BLK-20RD
Magpul Industries PMAG GEN M3 AR-15 Rifle Magazine, .300 Blackout, 20 Round, Black, 1 Pack, Polymer, MAG1182-BLK-20RD
(12)
List: $31.06 $22.99 Save Up to 26%
Amend2 Mod-3 Magazine, AR-15/M4/M16, 7.62x35/.300 AAC Blackout, 30 Round, Black, 300MOD3BLK30-30RD
Amend2 Mod-3 Magazine, AR-15/M4/M16, 7.62x35/.300 AAC Blackout, 30 Round, Black, 300MOD3BLK30-30RD List: $24.97 $16.99 Save Up to 32%
Best Rated TRYBE Defense Threaded Barrel, AR-15, .300 Blackout, 10.5 inch, Government Profile, Pistol Length, 1-7 Twist, 5/8x24 Thread, Nitride Finish, Black, BARPIST105300
TRYBE Defense Threaded Barrel, AR-15, .300 Blackout, 10.5 inch, Government Profile, Pistol Length, 1-7 Twist, 5/8x24 Thread, Nitride Finish, Black, BARPIST105300
(11)
List: $174.99 $124.99 Save Up to 29%
Best Rated TRYBE Defense 10.5 in GOVT/SOCOM Profile AR-15 Pistol Barrel, 9mm, 1/2X28 Threads, Nitride, Black, BARPIST1059MM
TRYBE Defense 10.5 in GOVT/SOCOM Profile AR-15 Pistol Barrel, 9mm, 1/2X28 Threads, Nitride, Black, BARPIST1059MM
(37)
List: $149.99 $99.99 Save Up to 33%
TRYBE Defense AR-15 Dust Cover Assembly, AR-15, .300 AAC Blackout, Black, AR15DCA300
TRYBE Defense AR-15 Dust Cover Assembly, AR-15, .300 AAC Blackout, Black, AR15DCA300
(17)
List: $14.99 $8.99 Save Up to 40%
Final Sale TRYBE Defense 5.56 NATO Medium Profile AR Rifle Barrel, Black, 16in, BARRIF16556
TRYBE Defense 5.56 NATO Medium Profile AR Rifle Barrel, Black, 16in, BARRIF16556
(9)
List: $174.99 $124.99 Save Up to 29%
Blazin' Deal TRYBE Defense Muzzle Brake, .30, 5/8x24, Black, TRBDMZBK30-BK
TRYBE Defense Muzzle Brake, .30, 5/8x24, Black, TRBDMZBK30-BK
(15)
List: $69.99 $39.00 Save Up to 44%
Best Rated TRYBE Defense 16 in Wylde Government Profile AR Carbine Barrel, .223 Wylde, 1/2X28 Threads, Nitride, Black, BARCARBT16223
TRYBE Defense 16 in Wylde Government Profile AR Carbine Barrel, .223 Wylde, 1/2X28 Threads, Nitride, Black, BARCARBT16223
(23)
List: $172.99 $119.99 Save Up to 31%
Blazin' Deal TRYBE Defense 16 in Blackout Government Profile AR Carbine Barrel, .300, 5/8X24 Threads, Nitride, Black, BARCARBT16300
TRYBE Defense 16 in Blackout Government Profile AR Carbine Barrel, .300, 5/8X24 Threads, Nitride, Black, BARCARBT16300
(11)
List: $179.99 $125.49 Save Up to 30%
Questions & Answers
Can this barrel be pin and welded?

Yes...I just had mine done via local shooting range Gunsmith.

by Mike, Verified Owner, February 20, 2025
View All Q&A You Have a Question? Ask!
Customer Reviews
Most Recent Reviews
Threads were not 5/8 as advertised by Bdub, Verified Owner, August 7, 2025
I got this barrel to go from carbine length to pistol length gas to soley run subsonic suppressed. I installed the barrel the gas block and shroud and went to put the suppressor on and it was a no go. My old $80 Bear Creek Arsenal barrel was 5/8×24 t...
Read More...
Most Recent Reviews
Excellent Barrel by Mike, Verified Owner, February 27, 2025
I used this barrel (14.5 inch version) in a new 300 Blackout Build, and have found it to be an Excellent Barrel so far. Have only put about 100 rounds thru the barrel on my local 100 yard range and the barrel has tested both reliable and accurate so ...
Read More...
Read All 2 Reviews
Show In Stock Only
4 Models Available
Barrel Length
All
Weight
All
Search
Click to select this item for your bundle offer!

Buy Together and Save

As low as $373.99
You Save Up to 19%
OP Bucks$8.08

Product Info for Rainier Arms AR Match 300BLK Barrel

Many have asked them to build a barrel with the same workmanship as their UltraMatch barrels while keeping it more affordable. They are able to reach their goal by sourcing a very high end barrel blank at an affordable price. They start off using a high precision match blank in 1:8 twist, machine it to the highest quality, you have a barrel that is the best value, hands down, in the industry.image

Specifications for Rainier Arms AR Match 300BLK Barrel:

Manufacturer: Rainier Arms
Color: Silver
Finish: Bead Blasted
Fabric/Material: Stainless Steel
Caliber: .300 AAC Blackout
Barrel Profile: M4
Gas System Length: Pistol Length
Gas Block Journal Size-Diameter: .750 in
Barrel Twist Rate: 1-8
Gun Make: AR Platform
Gun Model: AR-15
Firearms Threads Per Inch: 5/8x24

Package Contents:

  • Rainier Arms Match 300BLK Barrel

What firearm models does the manufacturer say Rainier Arms AR Match 300BLK Barrel is compatible with?

The manufacturer says that Rainier Arms AR Match 300BLK Barrel is compatible with AR-15

Rainier Arms AR Match 300BLK Barrel Orderable Models

List of Orderable Models

  • Rainier Arms Match 300BLK Barrel, 10.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-105-P-NF-SAT , MPN: RAB-M-300-105-P-NF-SAT , UPC: 744985351183 , Code: 4ZM-ATB-CPO16-RAB-M-300-105-P-NF-SAT
  • Rainier Arms Match 300BLK Barrel, 14.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-145-P-NF-SAT , MPN: RAB-M-300-145-P-NF-SAT , UPC: 744985351190 , Code: 4ZM-ATB-CPO16-RAB-M-300-145-P-NF-SAT
  • Rainier Arms Match 300BLK Barrel, 8.5in, 1-8 Twist, 5/8x24, Silver, Small, RAB-M-300-85-P-NF-SAT , MPN: RAB-M-300-85-P-NF-SAT , UPC: 744985351176 , Code: 4ZM-ATB-CPO16-RAB-M-300-85-P-NF-SAT
  • Rainier Arms Match 300BLK Barrel, 16in, 1-8 Twist, 5/8x24, Silver, Medium, RAB-M-300-16-P-NF-SAT , MPN: RAB-M-300-16-P-NF-SAT , UPC: 744985351206 , Code: 4ZM-ATB-CPO16-RAB-M-300-16-P-NF-SAT
Compare (0)
1 item has been added
Add at least two items to compare