5.56 Fluted Barrel 17″

SKU: STU5700-CM3R

$699.00

Available on backorder

SKU: STU5700-CM3R

Shipping & Returns

Shipping & Returns

Return Authorization is required for all returned merchandise. Please email johnd@spikestactical.com  or call 407.928.2666 to acquire a Return Merchandise Authorization Number (RMA.)

Review our complete Return Policy

Financing Available

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How It Works

Minimum $500 Order

Description

Specs

Description

Our complete upper assemblies will arrive to you inspected, tested, and ready to drop-in and go to work. We maintain our high standard of tolerances and attention to detail as the uppers we use for complete rifle builds. Every built upper and complete gun is test fired before leaving our facility for function check before it reaches you.

Specs

Forged Upper Receiver

  • 7075 T6 Construction
  • Forward Assist
  • Ejection Port Door
  • Ejection Port Door Spring
  • Ejection Port Door Rod

    • 17" CMV Barrel

  • 1/7 Twist Rate
  • 1/2 X 28 Thread Pitch for Muzzle
  • 5.56 Nato Chamber
  • .750 Gas Block Seat
  • M4 Feed Ramped Barrel Extension
  • Black Nitride Inside and Out
  • Fluted From Gas Block Back

    • 13” CRR MLOK Rail

  • 7075 T6 Barrel Nut
  • 6061 T6 Rail
  • Continuous Top Rail
  • Free Floating 1 Piece
  • Q.D. Attachment Points

    • Low Profile Gas Block

  • Solid Billet Steel
  • .750 I.D.

    • Rifle Gas Tube

  • Black Nitride Inside and Out
  • Gas Tube Roll Pin

    • Charging Handle

  • Forged Aluminum
  • Mil-Spec Type 3 Coating

    • Phosphate M16 Complete BCG

  • Phosphate Coated
  • Laser Engraved with ST Spider logo
  • High Pressure Tested (HPT)
  • Magnetic Particle Inspected (MPI)

    • R2 Brake

  • 1/2" Crush Washer

    • Weight: 4lb 9oz

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