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    The Magpul STR (Storage/Type Restricted) is a drop-in replacement buttstock for AR15/M16 carbines using mil-spec sized receiver extension tubes. A storage-capable version of the CTR®, the STR has improved cheek weld and two water resistant battery tubes on a compact, reinforced polymer A-frame design.

    A shielded operation lever and supplemental friction locking system prevent accidental operation and minimize excessive stock movement for enhanced weapon stability and accuracy.*

    The STR incorporates two integral sling loops, a reversible push-button QD sling mount, and a replaceable 0.30" rubber butt-pad which provides positive shoulder purchase to prevent slippage even with body armor or modular gear.

    Made in U.S.A.

    Features

    Mounts on mil-spec sized carbine receiver extension tube (not included) from manufacturers such as Colt, Armalite, S&W, LMT, and others (please see the note below)

    Two water-resistant battery storage tubes located on the left and right sides of the stock

    Each tube will store up to two (2) CR123A lithium or AA batteries

    Tubes are accessible from the rear in any stock position via a hand-removable rubber plug

    Supplemental friction lock minimizes accuracy robbing wobble*

    Premium chrome-silicon lock spring provides positive locking and long service life

    Sloping cheek weld provides a wide contact surface for user comfort

    Shielded release latch prevents snagging and accidental operation

    Replaceable 0.30" Rubber Butt-Pad offers an anti-slip surface and increases impact protection

    Compatible with Magpul ASAP® and other receiver-mount sling attachments

    Sling Mounts

    Rear – Reversible Type 1 Sling Mount fits up to 1.5" push-button QD swivels (swivel not included)

    Rear/Bottom – 1.25" sling loops

    Optional Accessories**

    Extended Rubber Butt-Pad, 0.55"

    Enhanced Rubber Butt-Pad, 0.70"

    Dual-side push-button QD swivel Type 2 Sling Mount

    Specifications**

    STR, Mil-Spec (stock configuration)

    Weight: 0.77 lb.

    Weight, w/ Rec. Extension: 1.02 lb.

    Length, Maximum: 7.30 in.

    Width, Maximum: 2.58 in.

    LOP Adjustment Range: 3.25 in.

    LOP, M4 Collapsed: 11.10 in.

    LOP, M4 Extended: 14.35 in.

    NOTE: There are two basic sizes of M4 Carbine receiver extensions (buffer tubes): mil-spec and commercial-spec. If you have a commercial-spec extension on your rifle, make sure to order the Commercial-Spec STR. Please see the "Related Info" section above to determine which tube you have.

    * Friction lock performance may vary depending on the host receiver extension's dimensional tolerances.

    ** Specifications based on standard-length (flat-back) M4 Carbine receiver extension and may vary depending on tube manufacturer.

    Standard Rubber Butt-Pad, 0.30" weight: 0.08 lb. Optional Extended Rubber Butt-Pad, 0.55" (weight: 0.11 lb.) or Enhanced Butt-Pad, 0.70" (weight: 0.13 lb.) may be used with either Mil-Spec or Commercial-Spec STR stocks.

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    Customer Reviews

    Based on 3 reviews
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    (3)
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    C
    Christopher Smith C.S. Christopher S.
    Solid

    Quality product, fast shipping, no complaints.

    N
    Nicholas T. N.T. Nicholas T.
    Perfect

    Shipped ridiculously fast. Very easy installation and fit perfectly on my VLTOR buffer tube. Magpul products are aways of good quality.

    D
    Dale S. D.S. Dale S.
    my order

    all I can say is awesome job I would definitely order again