Knight's Armament SR-25 E2 APC .308 Win, 16 in Barrel, URX-4 M-LOK, Ambidextrous Controls, KAC Micro Sights
The Knight's Armament SR-25 E2 APC is a 16-inch .308 Win carbine built on the proven SR-25 platform with E2-generation bolt and gas system enhancements. This example features KAC Micro flip-up sights installed, a threaded barrel with a two-chamber muzzle brake, a free-float URX-4 M-LOK handguard, and fully ambidextrous controls. It is in very good condition with an excellent, mirror-bright bore.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Light handling marks are present from prior use.
What’s Included
- Knight’s Armament (KAC) Micro flip-up front sight (installed)
- Knight’s Armament (KAC) Micro flip-up rear sight (installed)
- Two-chamber muzzle brake (installed)
- 1x 20-round SR-25 pattern steel magazine
The SR-25 E2 APC combines the .308 Win chambering with a 16-inch, threaded barrel cut with 5R rifling and a 1:10 twist, supporting precision performance in a compact package. A two-stage match trigger is standard, providing a crisp, predictable break.
The KAC URX-4 free-float M-LOK handguard reduces weight while maintaining rigidity, and it includes an integral QD sling cup. A continuous, T-marked 1913 Picatinny top rail runs across the receiver and handguard for consistent alignment of sights and accessories.
Ambidextrous controls include the safety selector, magazine release, and bolt release, allowing efficient operation from either shoulder. An adjustable polymer stock and A2-pattern pistol grip round out a familiar, duty-proven ergonomics package.
The E2-generation enhancements to the bolt and gas system reflect KAC’s current SR-25 architecture. The rifle uses SR-25 pattern magazines and carries a 20+1 stated capacity. Construction features aluminum receivers with a matte black anodized finish, and the rifle is made in the USA.