Knights Armament SR-15

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Knights Armament SR-15 Gun Stats

Knights Armament SR-15

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The SR-15 E3 MOD 2 series’ 5.56mm NATO barrel is manufactured for military grade durability, and is free-floated inside a URX 4 M-LOK handguard. An improved E3 round-lug bolt design both enhances function and increases bolt life far beyond the industry standard. The ambidextrous bolt release, selector lever, and magazine release offers left-handed users the ergonomic advantages inherent to AR15-based controls. The drop-in two-stage trigger serves double duty as an aid to precision marksmanship while enabling surgical speed shooting at close range. The 5.56mm 3-Prong Flash Eliminator interferes with propellant gas combustion forward of the muzzle to significantly reduce flash signature, will not ring upon firing or when struck, and is compatible with the Knight’s line of 5.56mm QDC Signature Reduction Devices.

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Knights Armament SR-15 Specs

1 Category

Technical Data


.223 Remington (5.56x45mm NATO)






104 oz

Barrel Length


Knights Armament SR-15 Features

The Knights Armament SR-15 is a peak-performance AR15 pattern rifle.  It has fully ambidextrous controls, and upgraded trigger, and has expertly honed contacting surfaces on all components.  Its long handguard adds to this rifle’s full-length optics rail and allows the user to add any attachments.  This rifle accepts all AR15 pattern magazines.

Knights Armament SR-15 Ballistics

.223 Remington (5.56x45mm NATO) Ballistic Data
Range (Yards) Drop (inches) Velocity Energy Wind drift (inches) Time (milliseconds)
0 0 0 0 0 0
50 0 0 0 0 0
100 0 0 0 0 0
150 0 0 0 0 0
200 0 0 0 0 0
250 0 0 0 0 0
300 0 0 0 0 0
350 0 0 0 0 0
400 0 0 0 0 0
450 0 0 0 0 0
500 0 0 0 0 0

Knights Armament SR-15 Capacity

The Knights Armament SR-15 accepts all AR15 pattern magazines.  This includes detachable box magazines with 10, 20, 30, 40, 60, and 100 round capacities while also accepting 60 and 100 round drum magazines.
The SR-15 has an overall length of 33.5 to 36.5 inches and weighs 6.5 pounds unloaded, which is outstanding for an AR15 pattern rifle with a full-length handguard.  This light weight makes walking long distances with this rifle easy on the user, while its standard overall length keeps it appropriate for close-quarters environments.

Knights Armament SR-15 Mobility


Knights Armament SR-15 Ergonomics

Shipped with a Magpul MOE+ pistol grip, MOE telescoping stock, and full-length M-LOK handguard, the SR-15 takes full advantage of current-generation AR15 ergonomics.  KAC employed all of the standard AR15 controls into the SR-15 aside from the safety selector, which they upgraded to an ambidextrous option.  The sub-7-pound weight of this rifle is where the SR-15 really excels, which is impressive given the full-length handguard allowing the user to employ any grip style they want.

Knights Armament SR-15 Fit & Finish

Knights Armament took the AR-15 and improved every aspect they could with the SR-15.  Virtually all contacting surfaces in the SR-15 are precision honed for the smoothest possible operation while other parts were re-designed to improve reliability and durability.  KAC also designed the SR-15 to use the least amount of gas pressure possible to reliably cycle the gun, giving the user the smallest amount of felt recoil, among many other improvements.  When you pick up a Knights Armament SR-15, you can immediately feel how much better it is compared to budget AR15’s.
Fit and Finish

How much is a Knights Armament SR-15 worth?

In 2024 a new or used Knights Armament SR-15 value varies depending on supply and demand. In the last 12 months there is great demand for a Knights Armament SR-15 and most rifles. The Price for a Knights Armament SR-15 has increased in cost by $0.00 in 2024 compared to 2023.

Estimated New and Used Values for a Knights Armament SR-15 Values are based on a basic model with no options or colors.

Condition Trade-In Private Party Dealer
New In box $454.99 $594.99 $699.99
Excellent $419.99 $559.99 $629.99
Very Good $384.99 $559.99 $629.99
Good $350.00 $524.99 $594.99
Fair $245.00 $454.99 $559.99
Poor $175.00 $350.00 N/A

Gun Value Conditions explained:

New in box - 100% condition in unopened box. Excellent - 95%+ condition with or without box.

Very Good - 90% - 95% condition (all parts/finish should be original).

Good - 80-90% condition (all parts/finish should be original).

Fair - 30% - 80% condition, parts, and finish may or may not be original. Must function properly and shoot.

Poor - under 30% condition. Firearm has severe wear and tear, does not function, or is damaged.

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