The 20/11 Stabilizer Kit is the first affordable high quality kit for the 1911. Fits all full size 1911's that do not have a rail across all generations. FeaturesReady for use out of the boxSimple installationUses the Gun's built in sights, no need to calibrate sightsCompatible with ALL full size 1911'sCompatible with compensatorsCompatible with Red Dot opticsNo pistol disassembly or permanent modifications requiredLightweight and compactIncreases accuracyFully functional with folded stockCompatible with the G7 proprietary holster (not included)