Diamondback 7.62×39 Barrel — 7", Black Nitride, 4150 CMV Steel (762X39P7H50B95R | UPC 815875019213)
Build a compact, hard-hitting 7.62×39 AR with the Diamondback 7" Black Nitride Barrel. Precision-machined from 4150 Chrome Moly Vanadium (CMV) steel and treated inside and out with a black nitride finish, this short barrel delivers rugged durability, excellent corrosion resistance, and easy maintenance for high-round-count range days. Optimized for AR-pattern 7.62×39 builds, part 762X39P7H50B95R brings serious punch in a maneuverable package—perfect for CQB-style training, truck/pack rifles, and suppressed projects (where legal).
Why Choose This Diamondback 7.62×39 Barrel?
Compact Power: The 7" length keeps overall build size minimal while harnessing the 7.62×39’s renowned terminal performance.
4150 CMV Strength: Heat-treated 4150 Chrome Moly Vanadium steel resists throat erosion and maintains accuracy under rapid fire.
Black Nitride Inside & Out: FNC treatment hardens surfaces, reduces friction, shrugs off corrosion, and makes cleanup faster.
AR-Pattern Ready: Built for modern AR-style 7.62×39 uppers—pair with a quality bolt and magazines for reliable feeding.
Great for Suppressed/Compact Builds: Short length leaves room for muzzle devices or suppressor mounts; the nitride finish is easy to maintain.
Key Features & Specs
Caliber: 7.62×39mm
Length: 7 inches
Material: 4150 CMV (Chrome Moly Vanadium) steel
Finish: Black Nitride (bore & exterior)
Part Number: 762X39P7H50B95R
UPC: 815875019213
Platform: AR-pattern 7.62×39 (verify compatibility with your upper/bolt/magazines)
Muzzle Threads: Commonly 5/8×24 for .30-cal devices (confirm before purchasing brakes, flash hiders, or suppressor mounts)
Gas System: Short configuration appropriate for 7" builds (confirm exact spec/porting with your retailer or manufacturer)
Profile/Twist: Barrel contour and twist rate may vary by lot—request current spec sheet if you’re tuning for specific bullet weights.
Performance You’ll Notice
Fast Handling: Ultra-compact length improves maneuverability in vehicles, structures, and tight terrain.
Consistent Accuracy: Rigid short profile and CMV metallurgy support repeatable groups with quality steel or brass-cased ammo.
Cleaner Running: Nitride bore reduces fouling adhesion—carbon and copper clear out with fewer passes.
Reliable Cycling: Proper gas and buffer pairing help deliver positive ejection and bolt hold-open with a range of loads.
Ideal Use Cases
Range & Training: Short, lively barrel for CQB-style drills and practical carbine work.
Truck/Pack Rifle Projects: Compact footprint for discreet carry and quick deployment.
Suppressed Builds (where legal): Short OAL leaves space for mounts/cans—verify thread pitch and follow torque specifications.
Preparedness & Ranch Rifles: 7.62×39 availability and punch in a rugged, low-maintenance package.
Compatibility & Build Notes
Bolt & Mags: Use a 7.62×39-specific AR bolt and reliable 7.62×39 magazines for proper case taper and feed geometry.
Buffer System: Short barrels often benefit from heavier buffers/springs—tune for a 3–4 o’clock ejection pattern.
Headspace: Always gauge with your chosen 7.62×39 bolt/BCG.
Muzzle Devices: Confirm 5/8×24 threads before installing brakes, flash hiders, or suppressor mounts; re-torque and re-zero after changes.
Gas Block Clearance: Ensure your handguard and gas block choice provide proper fit around the short gas system.
Installation Tips (Best Practices, Non-Instructional)
Prep & Inspect: Degrease receiver/barrel extension threads; verify alignment surfaces are clean.
Torque & Time: Install barrel nut to spec; align gas tube channel precisely.
Secure the Block: Use correct fastener treatment on gas-block screws per manufacturer guidance.
Function Check: Confirm ejection/lock-back with multiple ammo types; tune buffer weight as needed.
Document Dope: After zeroing, note velocity/POI with your preferred loads (short barrels can shift velocities).
Care & Maintenance
Routine Bore Care: Nitride simplifies cleaning—solvent soak, patch, light brush, protect with a thin oil film.
Hardware Checks: Re-check gas-block and muzzle device torque after the first range session and periodically.
Weatherproofing: Wipe down exterior surfaces after wet/dusty use; store in a dry environment.
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Diamondback 7.62×39 Barrel — 7", Black Nitride, 4150 CMV (762X39P7H50B95R | 815875019213): a compact, durable, and maintenance-friendly barrel that brings real 7.62×39 performance to your AR-pattern build—ready for modern accessories, tuned buffers, and your next range day.
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