MPN: SB51807-MPM


  • Cold Hammer Forged
  • Comes with NiB M4 feed ramped barrel extension
  • Black Nitrite inside and out
  • Weight less than an equivalent length barrel
  • Made in the U.S.A.


  • Caliber: 5.56 NATO
  • Barrel Length: 18-Inch
  • Gas Seat: 0.750"
  • Profile: Medium Profile
  • Gas Placement: Rifle-Length
  • Twist Rate: 1:7 Twist
  • Material: Proprietary CMV Alloy (DIN 21CrM0V511)
  • M4 Feed Ramps: Yes
  • Muzzle Thread Pattern: 1/2"-28
  • Finish: Black Nitride
  • Weight: 1 lb 15.08 oz.


  • AR-15 upper receivers


Choosing an AR barrel isn’t always a simple task. There are plenty of bad choices out there as well as a few gems that can really make choosing one hard. At Wing Tactical, we skip the junk and only bring you barrels that stand out in the crowd. One of those gems is the Spikes Tactical SPR Barrel. The Special Purpose AR15 18 inch barrel is a great choice if you want a quality long barrel that brings a lot to the table.

Spikes Knows Barrels

The Spikes Tactical SPR Barrel is made with quality materials, design features, and processes that you can count on to come together into one of the best barrels in our collection. It all starts with the selection of a super tough alloy for barrel stock that can endure anything you can come up with. The Special Purpose AR15 18 inch barrel is cold hammer forged, a process that only makes an extraordinary alloy into an even tougher barrel. Spikes CHF barrels will turn upwards of 20,000 rounds reliably. That’s a quality active service life. This one’s ready to work, no satin pillow required.

The Features You Need

The Spikes SPR barrel features 1 in 7 twist rifling, a 1/2 x 28 threaded muzzle and a gas block seat ready to accept your .750 Gas block. It’s chambered to 5.56 NATO so it’s ready for your off the shelf as well as custom loaded ammunition. M4 feed ramps give it a reliable feed action for response in the field that you can count on. The whole package gets a quality black nitride bath, covering it inside and out. That gives it the quality corrosion resistance you need in hostile environments and resists damage from handling and the day's obstacles.

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