18" SPR .224 Valkyrie 1:6.5

3.00 LBS
Calculated at Checkout

Expected release date is 1st Sep 2021

OUT OF STOCK - ETA September 2021

18” SPR profile .224 Valkyrie rifle barrel with threaded muzzle for AR-15 rifles.

- 416 Stainless steel

- 46 oz including extension

- 0.75" gas block journal

- 4-groove / 1:6.5” twist button rifling

- 1/2-28 muzzle thread

- Rifle length gas system

- Whitworth Tool barrel extension

- M4 feed-ramps

- Compatible with silencers from Surefire, AAC, Gemtech, Elite Iron, YHM, and most others


Build it into an ALL NEW Upper Assembly HERE.


"Rebuild My Upper" info - click HERE


The SPR profile is our mid-heavy AR-15 barrel profile and will shoot MOA or better with quality ammunition. 

Optional Shim Set: The best 5$ you will ever spend! These stainless steel shims guarantee you perfect and hassle free barrel nut / gas tube alignment within the correct torque specs every time. For more information on our shims and a step-by-step guide to their use check out our video HERE.


Optional Bolt: We check every bolt / barrel for proper headspace before they leave our shop. For more information on our bolts click HERE.


Optional Bolt Carrier: Carriers ship assembled and include the gas key, firing, retaining and cam pins. If you purchase a bolt and a carrier, we will assemble the complete carrier group for you before shipping. For more information on our carriers click HERE.


Optional Gas Block Pinning: Only available for low-pro gas blocks. We drill and ream precise holes in the barrel and gas block then press-fit a dowel pin through so that the block will never shift on the barrel. Most military and police weapons are pinned. For more information on pinning click HERE.


More Information: Click HERE to see additional information about all our AR-15 barrels and other components on our “Product Information” page. If you are unfamiliar with AR-15 barrel maintenance and new barrel break-in, we encourage you to view our "Maintenance" page HERE for some tips on getting the most out of your firearm.


Shipping: In stock barrels (together with any additional parts ordered) usually ship within 5 - 10 business days from the date of purchase. Custom coating / bead-blasting and gas block pinning may delay shipping by a few days. We ship via UPS to addresses within the contiguous United States, and USPS Priority to Alaska and Hawaii.


Billing: Your credit card is charged for the full amount of your purchase at the time you place your order, not when your order ships.