The Knights Armament SR-15 Mod2 MLOK is a .223 Rem / 5.56x45 NATO semi-automatic rifle with a 16-inch chrome-lined, hammer-forged barrel at a 1:7 twist rate. It weighs 6.55 lbs, holds 30 rounds in its included detachable magazine, and has a black matte finish. 
 

Key Specifications 

• Manufacturer: Knights Armament Company 
• Model: SR-15 Mod2 
• Type: Modern Sporting Rifle 
• Caliber: .223 Rem / 5.56x45 NATO 
• Barrel Length: 16 inches 
• Capacity: 30 rounds (detachable magazine included) 
• Weight: 6.55 lbs 
• Finish/Color: Black (Matte) 
• Action Type: Semi-Automatic 
   

Detailed Features 

The MLOK handguard keeps weight down while accepting a wide range of accessories. Lights, grips, bipods, and pressure switches all attach without rail adapters. The 1:7 twist chrome-lined barrel stabilizes heavier 5.56 projectiles and holds accuracy well over sustained fire. 
 
The integrated flash hider reduces muzzle signature in low-light conditions. Polymer stock and pistol grip are standard and contribute to the rifle's overall balance at 6.55 lbs. The semi-auto action cycles reliably across commercial and military-spec 5.56 ammunition. 
 

Usage Scenarios 

For competitive shooting the light weight, accurate barrel, and MLOK customization options give a practical platform for three-gun and similar events. For home defense the 30-round magazine and reliable cycling are straightforward advantages. Varmint and small game hunting with .223 is also a common use, where the caliber and barrel length perform well at typical field distances.

The Knights Armament SR-15 Mod2 MLOK consistently draws positive reviews from the shooting community, with a few honest discussions around pricing and customer support.

Build quality is the dominant topic. Owners describe the fit and finish as noticeably above production-grade AR builds, and the materials used (high-grade aluminum, durable finish) back that claim up in extended use. Accuracy at various distances is frequently praised, and the MLOK system's flexibility for accessories gets consistent positive marks from people who like to customize their setup.

Reliability across ammunition types is generally reported as excellent, which matters in both tactical training and competitive contexts. The rifle has a strong reputation among law enforcement and military users, which carries weight in civilian discussions.

Price is the most common objection. KAC products sit above standard AR-platform pricing, and that gap drives most of the comparison discussions. Customer support experience is mixed in reported feedback. Some owners describe smooth interactions, others have encountered delays. Weight at 6.55 lbs is occasionally called out as slightly heavy for its class, though most acknowledge the construction justifies it.