Magpul PTS CTR Stock
The patent-pending Magpul CTR (Compact/Type Restricted) – This Model is a drop-in replacement butt stock for carbines using mil-spec 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 extra-power lock mechanism uses a premium chrome-silicon spring to avert auto-collapse failure and maintains strength by resisting spring relaxation. The CTR also features a supplemental friction lock system that minimizes wobble* for enhanced weapon stability and accuracy. 
The CTR Model includes a standard 0.30" rubber butt-pad which provides positive shoulder purchase to prevent slippage even with body armor or modular gear.
Specifications:
CTR, Mil-Spec (w/ Rubber Butt-Pad, 0.30") -
Weight, Stock: 0.48 lb. - Weight, w/ Rec.
Extension: 0.79 lb. -
Length, Stock: 6.60 in. -
LOP Adjustment Range: 3.3 in. -
LOP, M4 Collapsed: 10.1 in. -
LOP, M4 Extended: 13.4 in.
* Friction lock performance may vary depending on the 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: 0.09 lb. Optional Extended Rubber Butt-Pad, 0.55" weight: 0.12 lb. Optional Enhanced Rubber Butt-Pad weight: 0.15 lb.
Investment: R1150.00

