The CMMG M16-Style Safety Selector Switch (brand part no. 55CA8D0) drops into a standard AR-15 lower to give the rifle the classic SAFE/SEMI/AUTO marking layout seen on retro and clone builds. CMMG machines it to fit the same lower-receiver selector hole used across mil-spec AR-platform rifles, making it a simple bolt-in upgrade for anyone assembling a retro-style build or replacing a worn factory selector. On a standard semi-automatic AR-15, the AUTO marking is cosmetic only — the switch itself does not add full-auto capability. This AR safety selector is a straightforward, drop-in part for standard semi-automatic AR-15 lowers.

Key Specifications

• It carries the classic SAFE/SEMI/AUTO marking layout used on retro-style builds.
• It fits the standard AR-15 lower receiver selector hole.
• It is manufactured by CMMG.
• On a standard semi-automatic lower, the AUTO marking is cosmetic only and does not enable full-auto fire.

Frequently Asked Questions

Does installing this selector make my AR-15 full-auto?
No. On a standard semi-automatic AR-15 lower, this switch only changes the markings and feel of the selector.

Will this fit a standard AR-15 lower?
Yes, it is machined to fit the standard mil-spec AR-15 lower receiver selector hole.

Buy the CMMG M16-Style Safety Selector Switch

The CMMG M16-Style Safety Selector Switch ships fast from our Lubbock, Texas gun shop.