Noveske SPR Match Barrel AR-15 5.56x45mm NATO Medium Contour 1 in 7" Twist 18" Stainless Steel with Switchblock Gas Block
This barrel includes the patented SwitchBlock adjustable gas block. The SwitchBlock has three positions: Unsuppressed, Suppressed, and Off. The block's suppressed setting greatly reduces the amount of excess gas, carbon and fouling produced when a silencer is installed at the muzzle, as well as significantly improving reliability. Gas flow adjustments are made by simply depressing the locking plunger and rotating the selector drum to the desired position.
All Noveske match barrels have a medium contour, bead-blasted satin finish, M4 extended feed ramps, and are threaded at the muzzle for the addition of flash hiders, muzzle brakes and/or sound suppressors. Each barrel is shipped with a pinned, low profile gas block, gas tube and barrel extension. This SPR 18" barrel has an intermediate length gas system, which is 1.5" shorter than a rifle length gas system. The intermediate position is optimal for an 18" barrel since it maintains reliability while also keeping the gas port pressure lower than shorter systems for a smoother recoil impulse.
- Length: 18"
- Material: 416R Stainless Steel
- Twist Rate: 1 in 7" Polygonal Rifling
- Chamber: 5.56 Match Mod O
- Contour: Medium
- M4 Feed Ramps: Yes
- Gas Port Location: Intermediate (1.5" less than Rifle)
- Barrel Diameter at Gas Port: 0.750"
- Muzzle Thread Pattern: 1/2"-28
- Extras: SwitchBlock Adjustable Gas Block, Gas Tube
- Weight: 40 oz
- Noveske Match Stainless Barrels use a proprietary 1" long gas block that comes installed from the factory. Standard AR-15 front sight bases (1.9" long) are NOT compatible.
- The SwitchBlock uses a straight gas tube and is NOT compatible with many low profile tubular handguards or quad rail systems. However, a handguard of 11.3" in length or shorter will fit behind the SwitchBlock.
Shipping Weight: 2.670 PoundsXThe total weight of the product, including the product’s packaging as it sits on our shelf. Since some products ship directly from the Manufacturer, their weight may be unavailable. Because of variations in the manufacturing process, similar products may have differing weights. Unless the product is designated as “Ships Alone”, Shipping Weight does not include the shipping box or packing materials associated with your order.
XProduct ships from MidwayUSA, separate from any other products on your order due to its size. Products that are Shipped Alone incur separate "Per Order" and "Per Pound" shipping charges.
XProduct is regulated by the US Department of Transportation (DOT) and cannot be shipped via USPS or air shipping methods. DOT-Regulated products must ship UPS Ground.
XProduct is restricted by shipping carriers and cannot be shipped to certain locations or via certain shipping methods.
XAdditional shipping charge for HazMat products. Carriers charge extra to ship packages with products they consider hazardous, such as reloading powder and primers.
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