The l5awmtm +6 extended basepad increases the l5awmtm capacity by 6 rounds, it is optimized for use with original magazine spring.Speeds up reloads by increasing magazine drop efficiency, installs in seconds; no additional tools or permanent modifications required.Cnc machined from 6061 aluminum; anodized and laser engraved and is compatible with all standard capacity l5 advanced warfighter magazines.Caliber: 223 Rem,5.56 NATOCapacity: +6rdsFinish: BlackModel: L5AWMMaterial: 6061 AluminumType: Magazine ExtensionBrand Fit: LancerCapacity: +6s