"Glock suggests using ammunition that is manufactured and meets SAAMI or industry specifications. If you are not sure the ammunition brand or type you choose is safe for use, call the ammunition manufacturer and ask if the product meets SAAMI guidelines before using it in you firearm. Some +P ammunition meets these guidelines, +P+ normally does not. This ammunition may generate a higher pressure over the standard loadings, and may shorten the component life of your firearm." Wanna kill these ads? We can help!