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AR Upper Parts

All MCS Gear-up Upper receiver products are backed by our 100% Satisfaction guarantee and include fast free USPS shipping! Please contact us if you are interested in Bulk purchases. 

  • .223 Chevron Brake .223 Chevron Brake

    .223 Chevron Brake

    The .223 Chevron Brake is an oversized recoil mitigation solution for centerfire rifles. With a large venting chamber that utilizes technology from large bore gun platforms, the Chevron Brake will provide the shooter with lighter recoil and reduced...

    MSRP: $39.99
    $29.99
    Add to Cart
  • SALE
    .750 Low Profile Steel Gas Block

    .750 Low Profile Steel Micro Gas Block

    Low Profile Steel Gas Block fits all M4 Carbines and M16A2 – A3 and A4 rifles with .750 barrels. Replaces front sight and requires 10″ or longer free float handguard for enhanced reliability.For your safety, Trinity Force recommends this part...

    MSRP: $25.99
    Was: $18.99
    Now: $13.99
    Add to Cart
  • A2 Flash Hider A2 Flash Hider

    A2 Flash Hider .223

    The AR15 A2 Flash Hider replicates the flash suppression of the original MIL-SPEC Birdcage A2 Flash Hider, and uses a flat sided base for easy installation.For your safety, Mcs recommends this part be installed by a competent, qualified...

    MSRP: $19.99
    $14.99
    Add to Cart
  • SALE
    CQ muzzle brake (.223) CQ muzzle brake (.223)

    CQ muzzle brake (.223)

    The CQ muzzle brake features in-line ports to redirect propelled gas to minimize recoil on the .223  platform.  Drilled venting holes reduces muzzle rise, improving shooter control and accuracy.For your safety, Trinity Force recommends this...

    MSRP: $25.99
    Was: $18.99
    Now: $15.99
    Add to Cart
  • SALE
    Extended Charging Handle Latch

    Extended Charging Handle Latch

    Oversized for quick access from all shooting positions. Allows quick, easy operation with left hand. Makes the charging handle easier to find and operate, especially on scope-mounted flat top receivers.Great for three gun shooters; expedites reloads and...

    MSRP: $19.99
    Was: $14.99
    Now: $8.99
    Add to Cart
  • MCS 18" Upper Receiver 223 WYLDE

    MCS 18" Upper Receiver 223 WYLDE

    MCS Semi-Complete Upper Receiver 223 Wylde 18" Stainless Steel Barrel Black Finish 1:7 Twist 15" RPR MLOK Rail BMD Muzzle Brake No BCG or Charging Handle

    MSRP: $340.99
    $319.99
  • Tri Port muzzle brake (.223) Tri Port muzzle brake (.223)

    Tri Port muzzle brake (.223)

    The Tri Port muzzle brake features 3 in-line ports to redirect propelled gas to minimize recoil on the .223 AR15 platform.  Drilled venting holes reduces muzzle rise, improving shooter control and accuracy.For your safety, MCS recommends this part...

    $14.99