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An enhanced version of the Magpul CTR® stock, the STR (“Storage/Type Restricted”) buttstock features two 4¼" left- and right-side positioned battery storage tubes and a wider cheekweld for extra comfort. Rubber caps at the rear keep the storage compartments resistant to water incursion, yet pop off easily for access to two AA or two CR-123 batteries inside. Features two integral 1¼" sling loops and a socket for a pushbutton QD sling swivel on each side of the stock. Friction locking mechanism minimizes wobble between the buffer tube and the buttstock for a solid, secure "feel", which is enhanced by the detachable .30" thick rubber rubber that adds plenty of "grab" to prevent shoulder slippage.
The STR Buttstock Kit includes the following items:

  • Mil-Spec buffer tube
  • Carbine buffer
  • Chrome Silicone recoil spring
  • Receiver end plate
  • Receiver extension castle nut


AR-15, Issue:11, Page:046
Big Book Catalog, Issue:69, Page:044

SPECS: Reinforced nylon polymer, Black, Dark Earth, or O.D. Green. 7¼" (18.4cm) OAL, 5¼" (13.3cm) high. LOP adjustment range: 3¼" (8.3cm). 12.5 oz (354g) wt.

BROWNELLS - AR-15 STR STOCK ASSY COLLAPSIBLE MIL-SPEC

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AR-15/M16 SRT BUTTSTOCK KIT, FDE
078-000-225WB
AR-15 STR Stock Assy Collapsible Mil-Spec FDE
078000225AR-15 STR Stock Assy Collapsible Mil-Spec FDE

$109.99

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Out of Stock

Color: Flat Dark Earth

Style: Collapsible

Type: Mil-Spec

Material: Polymer

Other Matches

AR-15/M16 SRT BUTTSTOCK KIT, BLK
078-000-224WB
AR-15 STR Stock Assy Collapsible Mil-Spec BLK
078000224AR-15 STR Stock Assy Collapsible Mil-Spec BLK

$109.99

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Out of Stock

Color: Black

Style: Collapsible

Type: Mil-Spec

Material: Polymer

AR-15/M16 SRT BUTTSTOCK KIT, ODG
078-000-226WB
AR-15 STR Stock Assy Collapsible Mil-Spec ODG
078000226AR-15 STR Stock Assy Collapsible Mil-Spec ODG

$109.99

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Out of Stock

Color: O.D. Green

Style: Collapsible

Type: Mil-Spec

Material: Polymer

AR15/M16 STR BUTTSTOCK KIT GRAY
084-000-399WB
AR-15 STR Stock Assy Collapsible Mil-Spec Gray
084000399AR-15 STR Stock Assy Collapsible Mil-Spec Gray

$109.99

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Out of Stock

Color: Gray

Style: Collapsible

Type: Mil-Spec

Material: Polymer

AR-15 STR STOCK ASSY COLLAPSIBLE MIL-SPEC