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ALL SPECIFICATIONS:





UPPER RECEIVER

  • M4 Feed ramps
  • Machined from 7075-T6 forged aluminum
  • Billet look receiver
  • Type III anodizing


  • M4E1 LOWER RECEIVER

    • Integrated Trigger Guard
    • Increased Magwell Flare
    • Upper Tension Screw
    • Machined from 7075-T6 forged aluminum
    • Type III anodizing


    • BARREL OPTIONS: 14.5” OR 16”

      • Government Profile
      • Chrome Phosphate
      • Chrome Moly Vanadium
      • 1:7 Twist
      • .750 FSB
      • HP and MPI Tested

UPPER RECEIVER

  • M4 Feed ramps
  • Machined from 7075-T6 forged aluminum
  • Billet look receiver
  • Type III anodizing


  • M4E1 LOWER RECEIVER

    • Integrated Trigger Guard
    • Increased Magwell Flare
    • Upper Tension Screw
    • Machined from 7075-T6 forged aluminum
    • Type III anodizing


    BARREL OPTIONS: 14" or 16.5"

    • Government Profile
    • Chrome Moly Vanadium
    • Nitride Finish
    • 1:7 Twist
    • .750 Gas Block Journal
    • HP and MPI Tested

UPPER RECEIVER

  • M4 Feed ramps
  • Machined from 7075-T6 forged aluminum
  • Billet look receiver
  • Type III anodizing


  • M4E1 LOWER RECEIVER

    • Integrated Trigger Guard
    • Increased Magwell Flare
    • Upper Tension Screw
    • Machined from 7075-T6 forged aluminum
    • Type III anodizing
    • Fully ambidextrous option (bolt and magazine)


    BARREL OPTIONS: 14.5" or 16”

    • Government Profile
    • Chrome Moly Vanadium
    • Chrome Phosphate Finish
    • 1:7 Twist
    • .750 Gas Block Journal
    • HP and MPI Tested

MOD4 HANDGUARD

  • 6061-T6 aluminum construction
  • Steel barrel nut
  • 7-sided M-LOK™
  • 4 steel reinforced Quick Disconnect (QD) sockets
  • Internal Diameter: 1.2"
  • Compatible with low-profile gas blocks

BOLT CARRIER GROUP: PHOSPHATE M-16 BCG

    Mil Spec Carrier:
  • 8620 Tool Steel
  • Full Auto M-16 cut
  • Mil-Spec Bolt:
  • C158 Steel
  • Shot Peened
  • HPT and MPI verified
  • Mil Spec Extractor:
  • 4140 Steel
  • Black Extractor Insert
  • Mil Spec Gas Key:
  • 4130 Steel
  • Properly Staked
  • Mil-Spec Opening Verified and Alignment Checked

MAGPUL MOE M-LOK HANDGUARD

  • Reinforced, heat-resistant polymer construction
  • Integral riveted aluminum heat shield
  • Front lip and side extensions, shields hand from hot gas block
  • Relieved area at the top rear accommodates many overhanging optic mounts


  • BOLT CARRIER GROUP: PHOSPHATE M-16 BCG

      Mil Spec Carrier:
    • 8620 Tool Steel
    • Full Auto M-16 cut
    • Mil-Spec Bolt:
    • C158 Steel
    • Shot Peened
    • HPT and MPI verified
    • Mil Spec Extractor:
    • 4140 Steel
    • Black Extractor Insert
    • Mil Spec Gas Key:
    • 4130 Steel
    • Properly Staked
    • Mil-Spec Opening Verified and Alignment Checked

SPRINCO BUFFER SPRING

  • Increased "lock time"
  • Consistent spring pressure throughout the duty cycle
  • Improved & consistent cyclic operation
  • Greater resistance to heat induced performance degradation
  • Reduced operation cost: Replacement springs are NOT needed
  • INCLUDED PARTS:

    • FSB & MBUS rear
    • Carbine H2 Buffer
    • PRO Safety
    • A2 Flash Hider
    • Magpul K2 Grip & Mapgul DT Stock
    • Gas Block: Phosphate, Pinned
    • MilSpec Single Stage Trigger
    • Receiver Extension - Ambi QD

SPRINCO BUFFER SPRING

  • Increased "lock time"
  • Consistent spring pressure throughout the duty cycle
  • Improved & consistent cyclic operation
  • Greater resistance to heat induced performance degradation
  • Reduced operation cost: Replacement springs are NOT needed


INCLUDED PARTS:

  • FSB & MBUS rear
  • Carbine H2 Buffer
  • PRO Safety
  • A2 Flash Hider
  • Magpul K2 Grip & Mapgul DT Stock
  • Gas Block: Phosphate, Pinned
  • MilSpec Single Stage Trigger
  • Receiver Extension - Ambi QD

UPPER RECEIVER

  • M4 Feed ramps
  • Machined from 7075-T6 forged aluminum
  • Billet look receiver
  • Type III anodizing


  • M4E1 LOWER RECEIVER

    • Integrated Trigger Guard
    • Increased Magwell Flare
    • Upper Tension Screw
    • Machined from 7075-T6 forged aluminum
    • Type III anodizing
    • Fully ambidextrous option (bolt and magazine)


    BARREL OPTIONS: 14.5" or 16”

    • Government Profile
    • Chrome Moly Vanadium
    • Chrome Phosphate Finish
    • 1:7 Twist
    • .750 Gas Block Journal
    • HP and MPI Tested

    MAGPUL MOE M-LOK HANDGUARD

    • Reinforced, heat-resistant polymer construction
    • Integral riveted aluminum heat shield
    • Front lip and side extensions, shields hand from hot gas block
    • Relieved area at the top rear accommodates many overhanging optic mounts


    • BOLT CARRIER GROUP: PHOSPHATE M-16 BCG

        Mil Spec Carrier:
      • 8620 Tool Steel
      • Full Auto M-16 cut
      • Mil-Spec Bolt:
      • C158 Steel
      • Shot Peened
      • HPT and MPI verified
      • Mil Spec Extractor:
      • 4140 Steel
      • Black Extractor Insert
      • Mil Spec Gas Key:
      • 4130 Steel
      • Properly Staked
      • Mil-Spec Opening Verified and Alignment Checked


      SPRINCO BUFFER SPRING

      • Increased "lock time"
      • Consistent spring pressure throughout the duty cycle
      • Improved & consistent cyclic operation
      • Greater resistance to heat induced performance degradation
      • Reduced operation cost: Replacement springs are NOT needed


      INCLUDED PARTS:

      • FSB & MBUS rear
      • PRO Safety
      • Carbine H2 Buffer
      • A2 Flash Hider
      • Magpul K2 Grip & Mapgul DT Stock
      • Gas Block: Phosphate, Pinned
      • MilSpec Single Stage Trigger
      • Receiver Extension - Ambi QD




COLOR OPTIONS: Anodized Black OR Kodiak Brown Anodized