Upgrade your commercial sized buffer tube equipped AR with the Magpul CTR (Compact/Type Restricted) collapsible stock. Intended to be completely snag free, the CTR uses an A-frame design and a shielded release latch to prevent inadvertent activation. It's further equipped with an extra power lock mechanism that uses a premium chrome-silicon spring to further prevent collapse failure and maintains strength by resisting spring relaxation. The CTR also includes a premium friction lock system that minimizes wobble (friction lock performance may vary depending on the receiver extension's dimensional tolerances) for enhanced weapon stability and accuracy. The Commercial-Spec Model includes an extended 0.55" rubber butt-pad to provide positive shoulder purchase and accommodates the longer, slanted back common to most commercial-spec tubes. Made in U.S.A.