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  • Home
  • About Us
  • Everything you need to know about reloading
    Start Shopping
      Reloading Dies
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      Reloading Components
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CTR® COLLAPSIBLE MIL-SPEC CARBINE STOCK FOR AR-15 – CTR CARBINE STOCK – MIL-SPEC

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The Magpul CTR (Compact/Type Restricted) – Mil-Spec model is a drop-in replacement buttstock for AR15 / M16 carbines using Mil-Spec sized receiver extension tubes. Designed for light, fast action, the streamlined A-frame profile avoids snagging and shields the release latch to prevent accidental activation.
 
The CTR also features a supplemental friction lock system that minimizes excessive stock movement for enhanced weapon stability and an ambidextrous QD sling mount that will accept any push-button sling swivel. The Mil-Spec model includes a standard 0.3"" thick rubber butt-pad, which provides positive shoulder purchase to prevent slippage even with body armor or modular gear.
 
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)
  • Shielded release latch prevents snagging and accidental operation while the supplemental friction lock minimizes accuracy-robbing wobble
  • Sloping cheek weld combines a slim profile with user comfort
  • Compatible with Magpul CTR® Cheek Risers for use with a fully extended stock and on rifles without rear-facing charging handles
  • Premium chrome-silicon lock spring provides positive locking and long life
  • Compatible with Magpul ASAP®, ASAP® QD and other receiver-mount sling attachments
  • Removable 0.3"" Rubber Butt-Pad offers an anti-slip surface and increases impact protection
  • Rear – Push-button QD swivel sling mount accommodates up to 1.5"" swivels (ambidextrous)
  • Rear/Bottom – 1.25"" sling loops
  • Toe – Lanyard hole for custom para-cord rigs
  • Made in the USA.
SPECS
  • Collection: Collapsible Non-Storage AR Stocks
  • Platform: AR10, AR15, M4, M16, M110, SR25
  • Compatibility: Mil-Spec sized carbine receiver extension tube (not included) from manufacturers such as Colt, Armalite, S&W, LMT, and others*
  • LOP, M4 Collapsed: ~10.5 in.
  • LOP, M4 Extended: ~13.8 in.
  • LOP Adjustment Range: 3.3 in.
  • Length, max: 6.9 in.
  • Weight: 9.0 oz.
  • Weight, w/ receiver extension: 13.0 oz
  • Friction lock performance may vary depending on the host receiver extension's dimensional tolerances.
  • Mil-Spec fits smaller 1.14" O.D. buffer tubes on Colt-manufactured M4 and similar mil-spec carbines.
  • Black and Flat Dark Earth Models are TACOM approved and on the Additional Authorization List (AAL) for the M4/M4A1.
  • Black NSN 1005-01-614-7778
  • Flat Dark Earth NSN 1005-01-616-4923
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 CTR. Specifications based on standard-length (flat-back) M4 Carbine receiver extension and may vary depending on tube manufacturer.
Description

Original price was: $61.70.Current price is: $44.01.

The Magpul CTR (Compact/Type Restricted) – Mil-Spec model is a drop-in replacement buttstock for AR15 / M16 carbines using Mil-Spec sized receiver extension tubes. Designed for light, fast action, the streamlined A-frame profile avoids snagging and shields the release latch to prevent accidental activation.
 
The CTR also features a supplemental friction lock system that minimizes excessive stock movement for enhanced weapon stability and an ambidextrous QD sling mount that will accept any push-button sling swivel. The Mil-Spec model includes a standard 0.3"" thick rubber butt-pad, which provides positive shoulder purchase to prevent slippage even with body armor or modular gear.
 
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)
  • Shielded release latch prevents snagging and accidental operation while the supplemental friction lock minimizes accuracy-robbing wobble
  • Sloping cheek weld combines a slim profile with user comfort
  • Compatible with Magpul CTR® Cheek Risers for use with a fully extended stock and on rifles without rear-facing charging handles
  • Premium chrome-silicon lock spring provides positive locking and long life
  • Compatible with Magpul ASAP®, ASAP® QD and other receiver-mount sling attachments
  • Removable 0.3"" Rubber Butt-Pad offers an anti-slip surface and increases impact protection
  • Rear – Push-button QD swivel sling mount accommodates up to 1.5"" swivels (ambidextrous)
  • Rear/Bottom – 1.25"" sling loops
  • Toe – Lanyard hole for custom para-cord rigs
  • Made in the USA.
SPECS
  • Collection: Collapsible Non-Storage AR Stocks
  • Platform: AR10, AR15, M4, M16, M110, SR25
  • Compatibility: Mil-Spec sized carbine receiver extension tube (not included) from manufacturers such as Colt, Armalite, S&W, LMT, and others*
  • LOP, M4 Collapsed: ~10.5 in.
  • LOP, M4 Extended: ~13.8 in.
  • LOP Adjustment Range: 3.3 in.
  • Length, max: 6.9 in.
  • Weight: 9.0 oz.
  • Weight, w/ receiver extension: 13.0 oz
  • Friction lock performance may vary depending on the host receiver extension's dimensional tolerances.
  • Mil-Spec fits smaller 1.14" O.D. buffer tubes on Colt-manufactured M4 and similar mil-spec carbines.
  • Black and Flat Dark Earth Models are TACOM approved and on the Additional Authorization List (AAL) for the M4/M4A1.
  • Black NSN 1005-01-614-7778
  • Flat Dark Earth NSN 1005-01-616-4923
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 CTR. Specifications based on standard-length (flat-back) M4 Carbine receiver extension and may vary depending on tube manufacturer.

109 in stock

SKU 430115967 Category

Description

The Magpul CTR (Compact/Type Restricted) – Mil-Spec model is a drop-in replacement buttstock for AR15 / M16 carbines using Mil-Spec sized receiver extension tubes. Designed for light, fast action, the streamlined A-frame profile avoids snagging and shields the release latch to prevent accidental activation.
 
The CTR also features a supplemental friction lock system that minimizes excessive stock movement for enhanced weapon stability and an ambidextrous QD sling mount that will accept any push-button sling swivel. The Mil-Spec model includes a standard 0.3"" thick rubber butt-pad, which provides positive shoulder purchase to prevent slippage even with body armor or modular gear.
 
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)
  • Shielded release latch prevents snagging and accidental operation while the supplemental friction lock minimizes accuracy-robbing wobble
  • Sloping cheek weld combines a slim profile with user comfort
  • Compatible with Magpul CTR® Cheek Risers for use with a fully extended stock and on rifles without rear-facing charging handles
  • Premium chrome-silicon lock spring provides positive locking and long life
  • Compatible with Magpul ASAP®, ASAP® QD and other receiver-mount sling attachments
  • Removable 0.3"" Rubber Butt-Pad offers an anti-slip surface and increases impact protection
  • Rear – Push-button QD swivel sling mount accommodates up to 1.5"" swivels (ambidextrous)
  • Rear/Bottom – 1.25"" sling loops
  • Toe – Lanyard hole for custom para-cord rigs
  • Made in the USA.
SPECS
  • Collection: Collapsible Non-Storage AR Stocks
  • Platform: AR10, AR15, M4, M16, M110, SR25
  • Compatibility: Mil-Spec sized carbine receiver extension tube (not included) from manufacturers such as Colt, Armalite, S&W, LMT, and others*
  • LOP, M4 Collapsed: ~10.5 in.
  • LOP, M4 Extended: ~13.8 in.
  • LOP Adjustment Range: 3.3 in.
  • Length, max: 6.9 in.
  • Weight: 9.0 oz.
  • Weight, w/ receiver extension: 13.0 oz
  • Friction lock performance may vary depending on the host receiver extension's dimensional tolerances.
  • Mil-Spec fits smaller 1.14" O.D. buffer tubes on Colt-manufactured M4 and similar mil-spec carbines.
  • Black and Flat Dark Earth Models are TACOM approved and on the Additional Authorization List (AAL) for the M4/M4A1.
  • Black NSN 1005-01-614-7778
  • Flat Dark Earth NSN 1005-01-616-4923
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 CTR. Specifications based on standard-length (flat-back) M4 Carbine receiver extension and may vary depending on tube manufacturer.

Additional information

Weight .8 lbs
Type

Mil-Spec
Make

AR-15
Style

Collapsible
Make/Model

AR-15
Color

Modified Coyote Brown
Material

Polymer

Frequently Asked Questions

Are these brass cases and reloading components factory-new or once-fired? +

We stock both premium factory-new components and high-quality once-fired brass. Please check the specific product listing title and description carefully; once-fired brass is fully inspected, but we always recommend resizing and inspecting prior to priming and powder charging.

Will this case trimmer gauge or die set work with my progressive press setup? +

Our standard reloading dies and case length trimmer accessories utilize industry-standard threads (typically 7/8"-14) compatible with major single-stage, turret, and progressive presses like RCBS, Hornady, Lee Precision, and Dillon. Caliber-specific trim gauges must match your exact brass caliber.

Do you enforce shipping restrictions on powder, primers, or live ammunition? +

Yes. Non-hazardous reloading equipment (dies, case length trimmers, gauges, and unprimed brass) ships via standard ground carriers with no extra fees. Any orders containing smokeless powders or primers will incur standard federal HazMat handling fees and cannot be shipped via air transportation.

How can I track my shipment to ensure delivery safety? +

Precision reloading gear is valuable, so all orders are shipped with tracking enabled. As soon as your package is dispatched from our inventory warehouse, a tracking number will be emailed to you. You can monitor your shipment directly on our Track Order page using your unique Order ID.

Can I return precision measuring tools or die components if they don’t fit? +

We accept returns on unused, unaltered tools, case preparation equipment, and unopened component boxes within 30 days of item delivery. Due to safety and strict quality control on the reloading bench, we absolutely cannot accept returns on opened packs of primers, smokeless powder, or processed brass casings.

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