"Full Description:\n“Maximum Range Turkey Choke Tube.” Designed to increase the range and pattern density of your favorite turkey gun! The Jelly Head Maximum utilizes an extended taper and fluted ports to tighten patterns up to 20% and reduce recoil allowing you to stop Gobblers in their tracks at even longer ranges! We utilize proprietary Black-T coating, the same protective barrier utilized by the military’s Special Forces to prevent rust and corrosion on weapons in the harshest environments, like turkey hunting. Sizes:\n\n<ul>\n\t<li>.660 Constriction (12ga Remington, 12ga Remington Vera Max, 12ga Invector, 12ga Benelli Crio, 12ga Beretta Xtremea I & II)</li>\n\t<li>.690 Constriction (12ga Mossberg 835/935)</li>\n\t<li>.655 Constriction (12ga Benelli/Beretta)</li>\n\t<li>.670 Constriction (12ga Invector Plus, 12ga Browning A5-DS)</li>\n\t<li>.570 Constriction (20ga Remington, 20ga Benelli/Berretta, 20 GA Benelli M2)</li>\n</ul>\n\n Warning: JellyHead Choke Tubes are not designed to shoot steel shot. Check and make sure your gun is unloaded before installing or removing the JellyHead Choke Tube. Make sure barrel is clear and never fire a shell when barrel is obstructed, serious injury and barrel damage could occur. Instructions:\n\n<ol>\n\t<li>Clean the threads in the muzzle and on the JellyHead Choke Tube before installing. Use a good choke tube grease to coat the threads before installing.</li>\n\t<li>Screw the tube into the muzzle, be careful to not cross-thread. Grip the knurled end and hand-tighten only. No tools needed. DO NOT OVER TIGHTEN.</li>\n\t<li>Periodically check tightness of the tube.</li>\n\t<li>Not to be used with Steel Shot.</li>\n</ol>\n\nSpecifications:\n\u003cul>\n\u003cli>Model #: 69401 - 12ga Mossberg 835/935\u003c/li>\n\u003cli>Model #: 69402 - 12ga Benelli/Beretta\u003c/li>\n\u003cli>Model #: 69403 - 20ga Remington\u003c/li>\n\u003cli>Model #: 69404 - 12ga Invector Plus\u003c/li>\n\u003cli>Model #: 69405 - 12ga Remington Choke Supertight\u003c/li>\n\u003cli>Model #: 69407 - 12ga Benelli Crio\u003c/li>\n\u003cli>Model #: 69406 - 12ga Invector\u003c/li>\n\u003cli>Model #: 69408 - 12ga Beretta Xtremea I & II\u003c/li>\n\u003cli>Model #: 69409 - 20ga Beretta/Benelli Mobil\u003c/li>\n\u003cli>Model #: 69410 - 12ga Remington Vera Max\u003c/li>\n\u003cli>Model #: 69411 - 20ga Benelli M2\u003c/li>\n\u003cli>Model #: 69412 - 12ga Browning A5-DS\u003c/li>\n\u003c/ul>\n"