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FN® MK 17 LB

Available for military sales only.

Modular. Adaptable. Accurate. The FN® MK 17 Long Barrel is the 7.62x51mm long-range variant of the U.S. military’s FN SCAR® program.

20” barrel length
900m effective range, point target
42.0” overall length, with stock fully extended
39.5” overall length, with stock fully collapsed
32.0” overall length, with stock folded
8.3 lbs. (empty)
10-round magazine allows for lower operator profile in prone position
Adjustable bipod available

Learn More about the FN SCAR® System

Military pricing on request.

*Product follows USA specifications
*Military products available to U.S. sales only


  • Caliber: 7.62x51mm
  • Operation: Short-stroke gas piston
  • Mag Capacity: 10 or 20 Rd.
  • Weight: 8.3 lb.
  • Barrel Length: 20"
  • Effective Range: 900m point target
  • Rate of Fire: 600 RPM
  • Color: Flat Dark Earth


Hard-anodized monolithic aluminum receiver

MIL-STD-1913 accessory rails at the 3, 6, 9, and 12 o’clock positions

Integral, folding front and rear back-up iron sights


Cold hammer-forged, chrome-lined, free-floating

Barrel can be changed by operator in less than five minutes


Telescopic design

Side folding feature provides for a more compact weapon package in aircraft and vehicle deployments, and can still be fired from the folded position

Adjustable cheekpiece

Composite polymer construction


Ambidextrous selector lever and magazine release

Charging handle may be mounted on right or left side

Enlarged trigger guard for easier access when wearing gloves

Adjustable gas regulator for use with sound suppressor to maintain constant rate of fire


Steel magazine body

Low-friction follower

Extended magazine base pad for improved ergonomics