EXP-556 Pistol – Mk 2

Rated 5.00 out of 5 based on 9 customer ratings
(9 customer reviews)


  • Model: EXP-556 Pistol – Mk 2
  • Caliber: 5.56 mm
  • Dealer Quantity Discounts Available at 1+, 10+, 20+ and 50+ Units
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SKU: EXP-556-MK2 Category:


EXTAR EXP-556 Pistol - Mk 2

EXP-556 Pistol – Mk 2

Model: EXP-556 Pistol – Mk 2

Type: Semi Automatic Gas Operated Pistol

Caliber: 5.56 mm

Magazine: Accepts any standard MIL-SPEC AR-15 magazine — Comes with one 30 rd magazine

Weight (unloaded): 3 lbs 3 oz

Overall Length: 18″ (45.72 cm)

Barrel Length (including muzzle device): 9.25″ (23.50 cm)

Barrel Length: 8.25″ (20.96 cm)

Barrel Specs: 1:9 standard twist 1/2-28 threaded muzzle with included recoil reducing muzzle device

Sights: Fixed ghost ring sights with a sight radius of 12.38″ (31.43 cm)

Other Specifications and Features of the EXP-556 Pistol – Mk 2:

  • Lightest 5.56 mm production pistol in the world
  • Compact design with no buffer tube
  • Ergonomic pistol grip
  • Extended, integrated MIL-STD 1913 Picatinny rail for easy mounting of optics and accessories
  • Vertical Picatinny Rail in rear (for mounting stock or pistol brace)
  • QD sling mount socket built into rear
  • Extremely low recoil – can be held and shot with one hand with virtually no muzzle climb
  • Crisp trigger pull of 5.5 lbs
  • Integrated winter trigger guard
  • Comes standard with anti-slip free floating hand guard and recoil reducing muzzle device

The EXP-556 Pistol – Mk 2 is proudly MADE IN THE USA by hard working American men and women and comes with a one year factory warranty against manufacturer defects.


AVAILABLE ACCESSORIES for the EXP-556 Pistol – Mk 2:

Tri-Rail Kit

Folding Charge Handle





This is a serialized item considered to be a firearm by BATFE.  This item must be shipped to a Federal Firearm License (FFL) holder.  All BATFE, GCA & NFA rules apply!   You will be prompted during checkout to pick an FFL to ship to in your area using our FFL Locate tool. YOU will be responsible for checking with your local FFL to ensure this weapon is legal in the state that you reside and that they will accept this weapon on your behalf and transfer it to you.  New Frontier Armory, LLC will NOT be responsible for any shipping or admin charges incurred by packages not being accepted by the FFL you choose during checkout.

Additional information

Weight 5 lbs
Dimensions 23.25 x 11.25 x 3.125 in

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