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AR-15/M4

M4 & AR-15 Parts & Accessories
Build your dream AR 15 by hand-selecting the parts you choose to complete it! In addition to assembled upper receivers and lower parts kits, we also offer a huge collection of AR-15 and M4 compatible parts and accessories including

● AR-15 charging handles
● Grips
● Magazines
● Sights
● Gun optics like scopes and red dot sights
● Stocks ● Extended mag releases
● Handguards
● Buffer tubes and springs
● And much more

In addition to these firearm parts, we also offer a huge collection of shooting accessories including but not limited to slings, bags, and multi-tools Whether you’re looking to upgrade your mil-spec charging handle to a much more practical, ergonomic ambi charging handle with an oversized grip that’s great for left-handed shooters, or you simply want to swap out your handguard, we have what you need!

  • MCS Anodized Red Mil-Spec 6-Position Buffer Tube kit MCS Anodized Red Mil-Spec 6-Position Buffer Tube kit

    Anodized Red Mil-Spec 6-Position Buffer Tube kit

    Product Features: 6-position tube Mil Spec Diameter Receiver Extension Tube  Extension Tube Machined from Aircraft Grade Aluminum   Secure Fit and Function with Various Collapsible Stocks  Anodized Red Finish 3 oz buffer end plate castle...

    MSRP: $39.99
    $35.99
    Add to Cart
  • SALE
    MCS L-E Stock Mil-Spec Kit - Black MCS L-E Stock Mil-Spec Kit - Black

    L-E Stock Mil-Spec Kit - Black

    The L-E stock was designed to conform with design parameters for the standard LE style stock found on most Law Enforcement and stock builds. This stock will fit with a Mil-Spec buffer tube and features a quick adjust grip lever and a multiple sling...

    MSRP: $59.99
    Was: $49.99
    Now: $39.99
    Add to Cart
  • SALE
    JE Machine tech Skeletonized 6 Position Buffer Tube Slot Design

    Skeletonized 6 Position Buffer Tube Slot Design

    This JE Machine AR-15/AR-10 skeletonized 6 position buffer tube gives your rifle a customized aesthetic look. The slotted design reduces the overall weight of your rifle while the detent lock prevents the tube from rotating when firing. Unique slot...

    MSRP: $42.99
    Was: $32.99
    Now: $28.99
  • SALE
    MCS Lower Parts Kit w/ Standard Grip & Trigger Guard - LPK

    Lower Parts Kit w/ Standard Grip & Trigger Guard - LPK

    Our AR-15 Lower Receiver Parts Kits (LPK's) include everything you'll need to put together a well-functioning and sleek Lower. The solid steel Trigger and Hammer are made in the U.S.A. and each of the pieces are also available separately. The standard...

    MSRP: $69.99
    Was: $59.99
    Now: $45.99
    Add to Cart
  • SALE
    MCS Aluminum Mil-spec Carry Handle Sight Matte Black

    Aluminum Mil-spec Carry Handle Sight Matte Black

    Product Features Fits virtually all rifle flattop Picatinny rail upper receivers   Provides your rifle a proper military appearance.    Holds flat against the weapon Converts your flattop rifle to an iron sights configuration (CMP...

    MSRP: $35.99
    Was: $29.99
    Now: $27.99
    Add to Cart
  • SALE
    MCS Skeleton AR Stock XTS-58 MCS Skeleton AR Stock XTS-58

    Skeleton AR Stock XTS-58

    The skeleton stock is versatile enough to work with any AR build. It features a low profile adjustment latch, angled rubber buttpad, and slick sided profile. The butt-pad profile is angled to accommodate plate carriers and the aggressive texturing will...

    MSRP: $39.99
    Was: $34.99
    Now: $29.99
    Add to Cart
  • SALE
    MCS Skeleton Machined AR15 Pistol Length Buffer Tube MCS Skeleton Machined AR15 Pistol Length Buffer Tube

    Skeleton Machined AR15 Pistol Length Buffer Tube

    Features: AR-15 Pistol Receiver Extension Tube Material: Impact Extruded 7075-T6 ASTM Aircraft Grade US Aluminum Surface Treatment: Per MIL-A-8625 F, Type III, Class 2 Anodize Fluted Surface  Open slot design for significant weight...

    MSRP: $42.99
    Was: $32.99
    Now: $28.99
    Add to Cart
  • SALE
    MCS Skeletonized AR Mil Spec Buttstock Black Anodized Aluminum MCS Skeletonized AR Mil Spec Buttstock Black Anodized Aluminum

    Skeletonized AR Mil Spec Buttstock Black Anodized Aluminum

    Skeletonized AR Mil Spec Buttstock, Black Anodized Aluminum.    Super lightweight Skeletonized Aluminum Construction.  Fits Military Spec Adjustable Buffer Tubes.  Trigger lock type adjuster.  Includes 2 M-LOK slots and 2 QR...

    MSRP: $110.99
    Was: $100.99
    Now: $95.99