Don't waste your time with the alternate options out there that are either overly bulky and heavy or force you to lose usable blade length on your bayonet! The AR-15 Bayonet Lug Extender - Adapter provides a 1.5” extension to correctly mount a bayonet to an AR-15 with 16” barrel and carbine length gas system and provides a 3-slot Picatinny rail to mount items like a flashlight, laser or foregroup to the underside.
 
• Optimized design profile for minimal weight and maximum strength.
• Proper positioning of your light so that it remains completely functional while your bayonet is mounted.
• Provides rigid mount for vertical grip if desired.
• Ultra-light and strong aerospace grade aluminum alloy. Total weight of around two ounces.
• Black anodized finish to resist corrosion and match your current hardware
 
***For Mil-Spec Bayonet Lugs Only*** If your bayonet lug fits into a standard bayonet like M7, M9, OKC-3S and others, you have a Mil-Spec bayonet lug. Ruger and some other manufacturers have shipped rifles with oversized bayonet lugs that do not fit bayonets.