CNC machined from aluminum and hard-anoxized for extreme durability, the TX22 Competition Basepads add 1oz weight and 0.3″ to factory magazine bodies for faster, more reliable reloads and easier handling. Added weight allows spent magazines to fall free from the gun, while the enlarged basepad enabled an improved grip index from mag pouches. Mag pads have an integrated numbering system on the bottom: simply use a small dab of paint marker (we like the silver sharpie) to in the milled divets to number your mags 1-6. Works with original spring and locking plate, and retains load-assist tabs. Basepads do not add capacity.