Barrels & Barrel Parts

The 5.56 16″ M4 Barrel, – Carbine Length Packaged is compatible with the AR-15 Platform.The 16″ 5.56 M4 barrel is the perfect barrel to start your next build and add to your AM-15 collection. This barrel is made from 4150 Chrome Moly Vanadium Steel with a Parkerized finish. Featuring a carbine length gas system with a .750″ gas port and a 1:8 twist, this barrel provides top accuracy and precision for your 5.56 build.

What It Does The Mk 1 Apex Grade Gunsmith Fit 4.25" Barrel is designed for the 9mm Smith & Wesson M&P. The barrel is NOT drop-in and requires fitting by a competent gunsmith. The stainless steel barrel features a 1:10? twist rate. The design increases accuracy performance making the M&P capable of shooting as small as a 1-inch grouping at 25 yards. Accuracy test results based on use of a mechanical rest. Final results may vary based on shooter ability, ammunition selection and variations in...

What It Does The Mk 1 Apex Grade Gunsmith Fit 5.00" Barrel is designed for the 9mm Smith & Wesson M&P. The barrel is NOT drop-in and requires fitting by a competent gunsmith. The stainless steel barrel features a 1:10? twist rate. The design increases accuracy performance making the M&P capable of shooting as small as a 1-inch grouping at 25 yards. Accuracy test results based on use of a mechanical rest. Final results may vary based on shooter ability, ammunition selection and variations in...

What It Does The Mk 1 Apex Grade Semi Drop-In 4.25"" Barrel is designed for the 9mm Smith & Wesson M&P. Due to the tolerance variations in the M&P Slide, the barrel is semi drop-in. In some cases this means the barrel may drop-in without alteration, but in most cases will likely require minor fitting which is easily done by the end user. The stainless steel barrel features a 1:10? twist rate. The design increases accuracy performance making the M&P capable of shooting as small as a 1-1/2 inch...

What It Does The Mk 1 Apex Grade Semi Drop-In 5.00" Barrel is designed for the 9mm Smith & Wesson M&P. Due to the tolerance variations in the M&P Slide, the barrel is semi drop-in. In some cases this means the barrel may drop-in without alteration, but in most cases will likely require minor fitting which is easily done by the end user. The stainless steel barrel features a 1:10? twist rate. The design increases accuracy performance making the M&P capable of shooting as small as a 1-1/2 inch...

What It Does The Mk 1 Apex Grade Threaded Gunsmith Fit 4.25" Barrel is designed for the 9mm Smith & Wesson M&P. The barrel is NOT drop-in and requires fitting by a competent gunsmith. The stainless steel barrel features a 1:10? twist rate. The design increases accuracy performance making the M&P capable of shooting as small as a 1-inch grouping at 25 yards. Accuracy test results based on use of a mechanical rest. Final results may vary based on shooter ability, ammunition selection and...

What It Does The Mk 1 Apex Grade Threaded Gunsmith Fit 5.00" Barrel is designed for the 9mm Smith & Wesson M&P. The barrel is NOT drop-in and requires fitting by a competent gunsmith. The stainless steel barrel features a 1:10? twist rate. The design increases accuracy performance making the M&P capable of shooting as small as a 1-inch grouping at 25 yards. Accuracy test results based on use of a mechanical rest. Final results may vary based on shooter ability, ammunition selection and...

What It Does The Mk 1 Apex Grade Threaded Semi Drop-In 4.25" Barrel is designed for the 9mm Smith & Wesson M&P. Due to the tolerance variations in the M&P Slide, the barrel is semi drop-in. In some cases this means the barrel may drop-in without alteration, but in most cases will likely require minor fitting which is easily done by the end user. The stainless steel barrel features a 1:10? twist rate. The design increases accuracy performance making the M&P capable of shooting as small as a...

What It Does The Mk 1 Apex Grade Threaded Semi Drop-In 5.00" Barrel is designed for the 9mm Smith & Wesson M&P. Due to the tolerance variations in the M&P Slide, the barrel is semi drop-in. In some cases this means the barrel may drop-in without alteration, but in most cases will likely require minor fitting which is easily done by the end user. The stainless steel barrel features a 1:10? twist rate. The design increases accuracy performance making the M&P capable of shooting as small as a...

The AR15 Bar Barrel Nut is used to connect BAR style handguards to standard threaded upper receivers. This product comes with 4 shims to properly time the gas tube with the upper receiver.Compatible with mil-spec threaded upper receivers ONLY.

The Troy Standard AR15 Barrel Nut is a rugged alternative to standard barrel nuts. The TRX Barrel Nut is a proprietary barrel nut designed specifically for TRX BattleRails. Note: Will not work with the Alpha Rail.

This barrel is designed for use in the LMT? (Lewis Machine & Tool) MRP? (Monolithic Rail Platform). This original MRP? was designed and patented by LMT? and is a true free-floating platform. The free-floating barrel provides accuracy & dependability with no loss of zero from rough handling. Note: Items marked as Special Order are ordered from the manufacturer. Being a manufacturer direct dealer, we are dependent on their warehouse inventory and production schedule. While most Special Order...

This barrel is designed for use in the LMT? (Lewis Machine & Tool) MRP? (Monolithic Rail Platform). This original MRP? was designed and patented by LMT? and is a true free-floating platform. The free-floating barrel provides accuracy & dependability with no loss of zero from rough handling. Note: Items marked as Special Order are ordered from the manufacturer. Being a manufacturer direct dealer, we are dependent on their warehouse inventory and production schedule. While most Special Order...

Genuine replacement barrel for the 5.5" 300BLK Rattler. Complete with barrel and gas block assembly.. SIG SAUER offers upper assemblies and caliber exchange kits in various barrel lengths. All NFA rules apply to installation of these upper assemblies to lower receivers and caliber exchange kits to upper receivers. Upper assemblies and caliber exchange kits with barrel lengths less than 16 “may only be affixed to lower receivers which (1) are not recorded as a rifle lower by the manufacturer...

Convert your AR15 to the SIG SAUER MCX Virtus. Complete with Virtus barrel and gas block assembly. SIG SAUER offers upper assemblies and caliber exchange kits in various barrel lengths. All NFA rules apply to installation of these upper assemblies to lower receivers and caliber exchange kits to upper receivers. Upper assemblies and caliber exchange kits with barrel lengths less than 16 “may only be affixed to lower receivers which (1) are not recorded as a rifle lower by the manufacturer and...

Convert your AR15 to the SIG SAUER MCX Virtus. Complete with Virtus barrel and gas block assembly. SIG SAUER offers upper assemblies and caliber exchange kits in various barrel lengths. All NFA rules apply to installation of these upper assemblies to lower receivers and caliber exchange kits to upper receivers. Upper assemblies and caliber exchange kits with barrel lengths less than 16 “may only be affixed to lower receivers which (1) are not recorded as a rifle lower by the manufacturer and...

Manufactured in the U.S.A. exclusively for SureFire by ZEV Technologies, maker of innovative firearms parts and accessories, these match-grade, drop-in barrels feature extremely tight tolerances, making them some of the most precise in the industry. Every high-performance barrel is double honed (rough and finish) to achieve a minimum surface finish of 16 RA, and during this process they are held to a final dimension of +/- 0.0002” for consistency and accuracy. And because they’re produced...