Fits the Maverick Arms 88, Mossberg 500/505/510 Mini AccuChoke 20 Gauge- TruGlo's best selling turkey choke- Precision CNC-machined- Accepts all turkey loads, including Hevi-Shot- No steel shot- Combo Bonus - Free TruGlo Gobble-Dot Universal Turkey Sight- TruGlo's original turkey sight - new and improved- Fits all ventilated rib shotguns regardless of width or tapering- Extremely low-profile- Front diameter is .060"; rear diameter is .035"- Endorsed by the National Wild Turkey Federation