ERGO Suregrip OS AR15/M16 Tactical Deluxe Rifle Grip Black Large. It features a thinner beaver tail to fit your AR-15. This grip features the same hand filling palm swells for both left and right handed shooters as our standard TDX. Specifications for ERGO Suregrip OS AR15/M16 Tactical Deluxe Rifle Grip: Manufacturer: ERGO Color: Black Finish: Rubber Overmold Gun Make: AR Platform Gun Type: Rifle Gun Model: M16 AR-15 Material: Polymer Grip Angle: 22 degrees Mount: Polymer Base Grip Type: Rifle Features of ERGO Suregrip OS AR15/M16 Tactical Deluxe Rifle Grip Fits AR-15 type firearms Use on the LR308 AR10 SR25 etc will require the use of the ''ERGO GRIP SPACER FOR LARGE FRAME AR'' Part No 4012. 4045-Old Style has a 22 degree angle from vertical on the front strap compared to 27 degrees of the regular 4045 Overmolded SUREGRIP material with heavy texture Ambidextrous palm swell Installation Requires Hardware Pack The Tactical Deluxe Grip Plug does NOT fit this Old Style Grip. Package Contents: ERGO Suregrip OS AR15/M16 Tactical Deluxe Rifle Grip What firearm models does the manufacturer say ERGO Suregrip OS AR15/M16 Tactical Deluxe Rifle Grip is compatible with? The manufacturer suggests that ERGO Suregrip OS AR15/M16 Tactical Deluxe Rifle Grip is compatible with AR-15 M16ERGO 4045-OS-B-BK: Suregrip OS AR15/M16 Tactical Deluxe Rifle Grip Black Large