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Sig Sauer MCX Spear 762NATO 16″ 20+1


Category: Product ID: 21471


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The MCX SPEAR is Sig Sauer’s submission to the U.S. Army Next Generation Squad Weapon Program – a program intended to replace the current M4A1. This advanced AR-Platform comes fully equipped with a wide array of Sig exclusive features and user-friendly designs. The MCX SREAR is outfitted with fully ambidextrous controls including the safety and bolt release, as well as two non-reciprocating charging handles, one mounted on the left side and one at the rear. To ensure superior accuracy, the MCX SPEAR utilizes a Chrome Lined DLC barrel and a 2-stage match trigger.


  • Based on the U.S. Army’s Next Generation Squad Weapon (NGSW) Rifle
  • Ambidextrous Bolt Catch/Release
  • Rear and Side Charging Handle
  • 6 Position Push-Button Folding/Collapsing Stock
  • 2 Position Adjustable Gas Valve
  • SLX/SLH QD Flash Hider


  • Manufacturer: Sig Sauer
  • Model: MCX Spear
  • Part Number: RSPEAR-762-16B
  • UPC: 798681674022
  • Caliber: 7.62x51mm NATO
  • Capacity: 20+1
  • Sights: Optic Ready
  • Barrel Length: 16″; 5/8″-24 tpi Thread Pattern
  • Twist: 1:10″
  • Weight: 9.2 lbs
  • Overall Length: 28″-38.3″
  • Finish: Coyote
  • Grips: Coyote Polymer


  • Sig Sauer MCX Spear 762NATO 16″ 20+1 Tactical Rifle
  • (1) 20 Round Magazine
  • Locking Device
  • Owner’s Manual


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