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United States Knight's Armament Company
SR-25
A gas-operated, semi-automatic designated-marksman rifle built on an AR-10-derived action chambered in 7.62×51mm NATO, developed by Eugene Stoner and C. Reed Knight Jr. Its accuracy and reliability made it the basis for the U.S. military's Mk 11 and M110 sniper rifle programs.
In service since 1990 · 15 operator countries
Compiled from public sources ·primary reference ↗ ·last verified 2026-07-02
800
m range
600
rpm
823
m/s
20
rds
💲 ≈ $12,000 — Approximate military/export unit price
Procurement snapshot
Availability & export
US ITAR-controlled
Export needs U.S. State Dept (DDTC) approval; end-use & re-transfer restrictions apply.
Channel: Foreign Military Sales (FMS) or Direct Commercial Sale
Fielded & proven
Widely fielded · 15 operators
In service since 1990. Status: active · ~15,000 built.
Lifecycle cost (est.)
Unit cost known; one-shot / small-arms class has no meaningful O&S tail to model.
Interoperability
Derived guidance from public data — export regime by country of origin, lifecycle from the GAO ~30% acquisition rule. Verify eligibility, pricing and offsets with the manufacturer and your acquisition authority.
Full specifications
Performance
Speed, range, altitude and engagement capability.
- Effective range
Distance at which the weapon reliably hits point targets. Higher extends engagement envelope.
- 800 m Stronger than 84% of rifles
- Rate of fire
Rounds per minute (cyclic). Higher increases suppression and hit probability.
- 600 rpm Stronger than 12% of rifles
- Muzzle velocity
Projectile speed leaving the barrel. Higher means flatter trajectory and better armor penetration.
- 823 m/s Stronger than 29% of rifles
Firepower
Armament, payload and guidance.
- Main armament
Primary weapon: main gun, cannon or missile type.
- 7.62×51 mm NATO
- Caliber
Bore diameter of the main gun or rifle. Larger throws heavier projectiles; not simply better — ammunition commonality matters.
- 7.6 mm
- Ammunition
Rounds carried (main gun) or standard magazine capacity.
- 20 Stronger than 18% of rifles
Physical
Dimensions, weight and crew.
- Length
Overall length including gun/probe where applicable.
- 1.09 m
- Empty weight
Weight without fuel, ammunition or crew.
- 5 kg
- Crew
Personnel required to operate. Fewer reduces exposure; autoloaders trade a loader for mechanical complexity.
- 1
- Barrel length
Barrel length — longer improves muzzle velocity and accuracy, shorter improves handling.
- 610 mm
Program
Cost, production scale and operators.
- Unit cost
Approximate flyaway/unit cost where public. Defense pricing varies hugely by contract, offsets and configuration. Lower is cheaper.
- $12,000 Stronger than 14% of rifles
- Units built
Total production run. Higher means proven manufacturing, mature logistics and spares availability.
- 15,000 Stronger than 16% of rifles
- Operator countries
Number of countries operating the system. More operators means broader support ecosystem.
- 15 Stronger than 55% of rifles
Specifications compiled from public Knight's Armament Company and reference sources ↗. Published defense figures are approximations — treat comparisons as directional. Last verified 2026-07-02.
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Tula Arms Plant AEK-971 Frequently asked questions
How many crew does the Knight's Armament Company SR-25 require? +
The Knight's Armament Company SR-25 requires a crew of 1.
What is the main armament of the Knight's Armament Company SR-25? +
The Knight's Armament Company SR-25's primary weapon is the 7.62×51 mm NATO.
What is the Knight's Armament Company SR-25 used for? +
The Knight's Armament Company SR-25 is a rifle & long arms typically used for infantry combat.
How many countries operate the Knight's Armament Company SR-25? +
The Knight's Armament Company SR-25 is operated by 15 countries.
How much does the Knight's Armament Company SR-25 cost? +
The Knight's Armament Company SR-25 has an approximate unit cost of 12,000 USD. Defense pricing varies by contract, offsets and configuration — treat this as directional.
