Noveske N4 Commando 11.5 inch DDF 5.56mm

Noveske N4 Commando 11.5 inch DDF 5.56mmLower ReceiverNoveske Gen 4 precision machined billet receiver from 7075-T6 aluminumOversized flared magazine wellIntegrated oversized trigger guardAmbidextrous bolt releaseAmbidextrous magazine releaseAmbidextrous 60 degree Magpul STS safety selectorHardcoat type III anodizing, then Flat Dark Earth Cerakote ceramic coating for superior finish longevityProperly staked Noveske QD sling mount endplateNoveske marked takedown and pivot pinAdjustable tension screw for perfect fit between upper and lowerALG Defense ACT Trigger6 Position Mil Spec Impact extruded Carbine ExtensionH buffer with Carbine action springBarrela 11.5" 5.56mm 416R Stainless with 1:7 twista Extra Thicc Contour with Disruptive Deep Flutinga Individual serialized barrel for QC purposesa Hand polished Noveske Match Chambera Mid-length gas tubea Noveske marked gas block: Low profile, .9375" journal, pinned to barrela M4 barrel extension w/extended hand polished feed rampsa Noveske Love Handle ambidextrous charging handleUpper Receivera Noveske 4th Generation precision machined billet receiver from 7075-T6 aluminum w/extended feed rampsa Hardcoat type III anodizing, then Armor Black Cerakote ceramic coating for superior finish longevitya Black nitride Noveske marked forward assista Noveske Love Handle ambidextrous charging handlea Featuring anti-rotation interface with handguarda Phosphate coated bolt carrier, full auto compatible, chrome lined carrier bore and keya Properly staked grade 8 American made gas key boltsa Phosphate bolt made from Carpenter 158 heat treated steel MPI tested (magnetic particle inspected)Handguarda 4th Generation NSR-10.75" (M-LOK) Free Floating Handguarda Featuring M-LOK mounting positions every 45 degrees with picatinny 1913 top raila Lightweight American made steel barrel nuta The 10.75" handguard with a 11.5" barrel will return a .080" clearance from end of handguard to barrel thread shoulder. Perfect spacing when you add your favorite suppressorThe Disruptive Deep Fluting (DDF) is an external barrel structure designed to significantly reduce primary (blast compression and expansion) and secondary (sinusoidal resonance) wave events in barrels, improving accuracy, reducing heat, and extending barrel life. Using data from the 2024 TACOM HO Finite Element Analysis (FEA) study. Noveske's Combat Systems Development & Support program launched an R&D project. The goal was to determine the optimal surface area per linear inch to effectively disrupt these wave events while maintaining the lightweight barrel contour already used by U.S. Special Operations personnel.DDF Specs1) Seven (7) Longitudinal Flutes2) Standardized .980a ^2 Outer Diameter, Minimum Bore Wall Thickness, and .125a ^2 of rounded cut at depth3) .250a ^2 Maximum Width4) Fluted maximum length of barrel, minus 1.050a ^2 break for a .9375a ^2 gas block journal5) Total Surface Area per Linear Inch of Fluted Barrel:a) .224 Bore Barrel - 4.0487sain (vs 3.06sain Standard Contour) +32.31%b).243 Bore Barrel - 4.0891sain (vs 3.12sain Standard Contour) +31.06%c).264 Bore Barrel - 4.1446sqin (vs 3.19sqin Standard Contour) +29.92%d).308 Bore Barrel - 4.2362sqin (vs 3.32sqin Standard Contour) +27.59%6) More accurate due to decreased sinusoidal resonance(vibration effecting the stability of the bullet)7) 25%-40% increase in cooling speed8) 8%- 13% decrease in weight compared to our standard contourAccuracyConstriction of the barrel's Second Moment of Area (axial flexion) by increasing the barrel's moment of inertia (structural/material resistance to flexion), vastly reduces load irregularities translated from the barrel to the projectile in accelerated transit down the rifled bore. This reduction in muti-axis wave mode functions allow the longitudinal axis of the projectile to remain better aligned with its velocity vector, thus decreasing precessional instability and increasing trajectory resilience.Thermal dampingAs a byproduct of the drastic reduction in vibration facilitated by the Disruptive Deep Fluting, transfer of kinetic energy into thermal energy as Variable Heat is reduced by 10%, while the cooling speed of the barrel is increased by 25-40% internal temperature at the throat.Barrel-life increaseMaterial failure in barrels is caused by the exertion of a force impulse wherein the flexion derived by that force exceeds the material stiffness provided by its temperature moment. The disruptive deep fluting reduces both the flexion imposed on the barrel by the accelerated force impulse and maintains a higher material stiffness due to its ability to maintain a lower temperature, thus increasing barrel life well beyond that of non structured barrels of the same given metallurgy.