Choate Tool Mini-14/Mini 30M4 P.G. Telescoping Stock223 5.56 7.65 X 39. We used a solid aluminum adapter housing to allow the M4 stock to be attached to the Mini 14/ Mini 30 pistol grip stock. This stock offers the most versatile length of pull you will find. It will go from youth to adults length with just one the stock. LOP range is 12 to 15 3/4 inches. WILL NOT WORK ON MODEL 583 OR NEWER VENT HANDGUARD SOLD SEPARATE These stocks fit the 181 and up series only. Specifications for Choate Tool Mini-14/Mini 30M4 P.G. Telescoping Stock: Manufacturer: Choate Tool Gun Model: Ruger Mini-14 Condition: New Country of Origin: USA Features of Choate Tool Mini-14/Mini 30M4 P.G. Telescoping Stock Aluminum adapter to fit the Mini-14/30 pistol grip stock Comes with a telescoping M4 style stock can use any AR telesopcing stock polymer construction Package Contents: Choate Tool Mini-14/Mini 30M4 P.G. Telescoping Stock What firearm models does the manufacturer say Choate Tool Mini-14/Mini 30M4 P.G. Telescoping Stock is compatible with? The manufacturer suggests that Choate Tool Mini-14/Mini 30M4 P.G. Telescoping Stock is compatible with Ruger Mini-14Choate Tool CMT-07-01-42: Mini-14/Mini 30M4 P.G. Telescoping Stock223 5.56 7.65 X 39