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Classified Defense - Upper Receiver Builder's Set
Classified Defense - Upper Receiver Builder's Set

Classified Defense - Upper Receiver Builder's Set

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Your Price: $625.00
Part Number: CD-UR-BS
Availability: In Stock.
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You asked for it, and as always, we came though.

You are now able to purchase our famous upper receiver, bolt carrier group, and barrel assembly in one total package. Simply add your favorite handguard and you're ready to start blastin'!


Specs - Bolt Carrier Group

  • Manufacturer - Industry Leading Manufacturer
  • Inspection/Assembly - Classified Defense
  • Caliber - Barrel Specific
  • Bolt Material - C158 - Shot Peened & MPI
  • Bolt Finish - DLC
  • Carrier Material - 8620
  • Carrier Finish - DLC Exterior with Chrome Lined Triple Bore
  • Gas Key Material - 4140 Billet
  • Gas Key Finish - DLC Exterior with Chrome Lined Bore
  • Gas Key Screws - Michiguns OCKS
  • Cam Pin Material - 4140
  • Cam Pin Finish - DLC
  • Extractor Material - 4140 Billet Heat Treated - Shot Peened
  • Extractor Finish - DLC
  • Firing Pin Material - 17-4PH H900
  • Latest Revision Extractor Spring With O-Ring Insert
  • M16 Profile
  • Weight - 11.6 oz

Specs - Barrel
  • Manufacturer - Classified Defense & Craddock Precision
  • Barrel Blank - Rock Creek
  • Material - 4150 CMV Steel
  • Caliber - See Selected Barrel for Details
  • Barrel Length - See Selected Barrel for Details
  • Muzzle Threads - See Selected Barrel for Details
  • Twist - See Selected Barrel for Details
  • Gas Block Diameter - .750"
  • Gas System Length - See Selected Barrel for Details
  • Gas Port Size - See Selected Barrel for Details
  • Barrel Extension - M4 Feed Ramps Polished Prior to Nitride
  • Barrel Exterior Finish - Nitride
  • Barrel Bore/Chamber Finish - Nitride
  • Contour - RAT - Repeatable Accuracy Taper
  • Bolt Material - C158
  • Bolt Finish - Black DLC
  • Bolt Matched to Each Barrel
  • Gas Block Manufacturer - SLR Rifleworks
  • Gas Block Material - 4150
  • Gas Block Finish - Melonite QPQ
  • Barrel Weight - XX.X oz
  • Gas Block Weight - XX.X oz


Specs

  • Manufacturer - Industry Leading Manufacturer
  • Inspection/Assembly - Classified Defense
  • Alignment/Anti-Rotation Pin Hole
  • 1913 Mil-Spec Top Rail - With or Without Scallops
  • M4 Feed Ramps
  • Ejection Port Size - Standard or Enlarged
  • Material - 7076 T5 Aluminum
  • External Finish - Hard Coat Anodized per Mil-A-8625F, Type III, Class 2
  • Internal Finish - Dry Film Lubrication
  • Weight - 8.64 oz


What's Included

  1. Complete Classified Defense Bolt Carrier Group Assembly With Bolt Headspace Matched to Barrel
  2. Complete Upper Receiver
  3. Barrel
  4. Gas Block
  5. Gas Tube

 

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