Magpul STR (Storage/Type Restricted) Stock com-spec

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The Magpul STR (Storage/Type Restricted) is a drop-in replacement buttstock for AR15/M4 carbines using commercial-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 commercial-spec sized carbine receiver extension tube (not included) from manufacturers such as Bushmaster, DPMS, Olympic, 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

 

Specifications**

  • STR, Commercial-Spec (stock configuration)
    • Weight: 0.77 lb.
    • Weight, w/ Rec. Extension: 1.10 lb.
    • Length, Maximum: 7.30 in.
    • Width, Maximum: 2.58 in.
    • LOP Adjustment Range: 3.80 in.
    • LOP, M4 Collapsed: 11.10 in.
    • LOP, M4 Extended: 14.90 in.

 

NOTE: There are two basic sizes of M4 Carbine receiver extensions (buffer tubes): mil-spec and commercial-spec. If you have a mil-spec extension on your rifle, make sure to order the mil-spec STR.


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

** Specifications based on extended-length (slant-back) commercial-spec carbine receiver extension and may vary depending on tube manufacturer.
Standard Rubber Butt-Pad, 0.30" or the optional Extended Rubber Butt-Pad, 0.55" and Enhanced Butt-Pad, 0.70" may be used with either Mil-Spec or Commercial-Spec STR stocks.