Fits the 1911 Government and Commander. These .460 Roland magazines have lo-profile steel base pads that are removable for easy maintenance. They feature an aircraft grade stainless heat treated tube with witness slots on both sides. The fiber-fill nylon self lubricating follower has an extended skirt to maximize creep from the tube when the magazine is empty. The magazine spring is made from high tensile strength heavy duty wire for enhanced feeding and is able to remain fully loaded for long periods of time without damage. No other .45 magazine can compare for proven inherent reliability and durability. Selecting the Correct 1911 Magazine: If the grips on your 1911 measure 4" to 4-1/4" long, you have a Government/Commander length grip. If the grips on your 1911 measure 3-1/2" long, you have an Officer/Defender length grip. Please check grip length before ordering. Restrictions may apply click here to view all restrictions