Knight's Armament SR-15 E3 Mod 2 M-LOK
Legacy SR-15 E3 Mod 2 M-LOK rifle with KAC bolt, gas, and URX4 upgrades.
- Price
- $2,899
- Weight
- 6 lb 8.8 oz
- Calibers
- 5.56mm NATO
- Rail
- mlok
Capability Profile
0-10 Scale Across 8 Axes
Key Highlights
- •Match-grade accuracy with military durability
- •Proprietary E3 bolt design
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Knights Armament SR-15 Semi-Automatic AR-15 Rifle 16\" Barrel .223/5.56 30rd - 31900
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Overview
The Knight's Armament SR-15 Mod 2 represents the evolution of Eugene Stoner's original design, featuring KAC's proprietary E3 bolt system with enhanced durability and reliability. With a 16-inch chrome-lined barrel and URX 4 M-LOK handguard, it's regarded as one of the finest fighting carbines available.
Key Features
- E3 enhanced bolt with rounded lugs for 5x service life
- 16" chrome-lined hammer-forged barrel
- URX 4 M-LOK free-floating handguard
- Ambidextrous controls (bolt release, safety, mag release)
- Two-stage match trigger
- 3-prong flash eliminator
- Improved extended gas system for reliability
Pros
- +Exceptional reliability (20,000+ rounds without cleaning in tests)
- +E3 bolt design vastly superior to mil-spec
- +Consistent 1 MOA accuracy even after heavy use
- +Premium ambidextrous controls
- +Smooth extended gas system operation
- +Military-proven design and quality
Cons
- −Premium price and collector-market volatility
- −Limited availability due to production constraints
- −Some military users report mixed experiences with 7.62 variants
- −Full-auto meltdown performance questioned by some testers
Detailed Specifications
- sku
- 31900
- caliber
- 5.56mm NATO
- Barrel Length
- 16"
- Overall Length
- 33.5" - 36.5"
- weight
- 6.55 lbs
- Gas System
- Direct impingement with KAC Mod 2 gas system
- railSystem
- M-LOK (URX 4)
- Trigger
- Two-stage match
- Twist Rate
- 1:7
- barrel
- Hammer-forged, chrome-lined
- Muzzle Device
- KAC 3-prong QDC flash eliminator
- status
- Legacy Mod 2 configuration; current KAC commercial SR-15 lineup has moved to KS-series carbines
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