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AR Upper Parts

Completely customize your AR build with high-quality AR upper parts. Our collection includes ejection port cover kits, sling mounts, forward assist assemblies, gas blocks, rail covers, safety pins and springs, and other AR parts. Completely personalize the look and performance of your rifle from the ground up. You can even customize by color. We also carry assembled upper receivers for a wide range of calibers and cartridges as well as build kits and AR upper parts kits to save you time and effort.

  • MCS AR-15 Forward Assist - ODG MCS AR-15 Forward Assist - ODG

    AR-15 Forward Assist - ODG

    MCS steel Mil-Spec AR-15 Forward Assist Kit comes complete and ready to install. The Plunger is Tan with other black finished components. Includes: Plunger Spring Retainer Pin Cerakote: OD Green

    MSRP: $39.99
    $26.99
    Add to Cart
  • MCS AR-15 Forward Assist - FDE MCS AR-15 Forward Assist - FDE

    AR-15 Forward Assist - FDE

    MCS steel Mil-Spec AR-15 Forward Assist Kit comes complete and ready to install. The Plunger is Tan with other black finished components. Includes: Plunger Spring Retainer Pin Cerakote : FLAT DARK EARTH

    MSRP: $39.99
    $26.99
    Add to Cart
  • MCS AR-15 Forward Assist - Lemon Zest MCS AR-15 Forward Assist - Lemon Zest

    AR-15 Forward Assist - Lemon Zest

    MCS steel Mil-Spec AR-15 Forward Assist Kit comes complete and ready to install. The Plunger is Tan with other black finished components. Includes: Plunger Spring Retainer Pin Cerakote: Lemon Zest  

    MSRP: $39.99
    $26.99
    Add to Cart
  • MCS AR-15 Forward Assist - Hunter Orange MCS AR-15 Forward Assist - Hunter Orange

    AR-15 Forward Assist - Hunter Orange

    MCS steel Mil-Spec AR-15 Forward Assist Kit comes complete and ready to install. The Plunger is Tan with other black finished components. Includes: Plunger Spring Retainer Pin Cerakote: Hunter Orange

    MSRP: $36.99
    $26.99
    Add to Cart
  • MCS AR-15 Forward Assist - Burnt Bronze MCS AR-15 Forward Assist - Burnt Bronze

    AR-15 Forward Assist - Burnt Bronze

    MCS steel Mil-Spec AR-15 Forward Assist Kit comes complete and ready to install. The Plunger is Tan with other black finished components. Includes: Plunger Spring Retainer Pin Cerakote: Burnt Bronze  

    MSRP: $39.99
    $26.99
    Add to Cart
  • MCS AR-15 Forward Assist - Bright White MCS AR-15 Forward Assist - Bright White

    AR-15 Forward Assist - Bright White

    MCS steel Mil-Spec AR-15 Forward Assist Kit comes complete and ready to install. The Plunger is Tan with other black finished components. Includes: Plunger Spring Retainer Pin Cerakote: Bright White

    MSRP: $39.99
    $26.99
    Add to Cart
  • MCS AR-15 Forward Assist - Zombie Green MCS AR-15 Forward Assist - Zombie Green

    AR-15 Forward Assist - Zombie Green

    MCS steel Mil-Spec AR-15 Forward Assist Kit comes complete and ready to install. The Plunger is Tan with other black finished components. Includes: Plunger Spring Retainer Pin Cerakote: Zombie Green

    MSRP: $39.99
    $26.99
    Add to Cart
  • MCS AR-15 Forward Assist - TAN MCS AR-15 Forward Assist - TAN

    AR-15 Forward Assist - TAN

    MCS steel Mil-Spec AR-15 Forward Assist Kit comes complete and ready to install. The Plunger is Tan with other black finished components. Includes: Plunger Spring Retainer Pin

    MSRP: $29.99
    $18.99
    Add to Cart
  • MCS AR-15 Forward Assist - RED MCS AR-15 Forward Assist - RED

    AR-15 Forward Assist - RED

    MCS steel Mil-Spec AR-15 Forward Assist Kit comes complete and ready to install. The Plunger is Red with other black finished components. Includes: Plunger Spring Retainer Pin

    MSRP: $29.99
    $18.99
    Add to Cart
  • MCS AR-15 Forward Assist - Blue

    AR-15 Forward Assist - Blue

    Our steel Mil-Spec AR-15 Forward Assist Kit comes complete and ready to install. The Plunger is blue with other black finished components. Includes: Plunger Spring Retainer Pin  

    MSRP: $29.99
    $18.99
    Add to Cart