SMITH & WESSON : PG-SHX™ GLOCK 28 This extension replaces the magazine

This extension replaces the magazine floor plate adding 1" in grip length to Glock factory M20

This combination adds 3/4" in grip length and does not add additional capacity to the magazine

This combination adds 5/8" in grip length and one rounds to the magazine making the total capacity 10 rounds

Springfield Armory XD MOD2 Series Magazine Extension (Flat Dark Earth)

SMITH & WESSON : PG-SHX™ GLOCK 28 This extension replaces the magazineGrip Extension for M&P 9 SHIELD X (13 round) This unit replaces the magazine base plate on the M&P 9 SHIELD X. This extension does not alter the capacity of the magazine. It adds approximately 1 2" inch additional gripping surface. For 13 round magazines only. If you need this extension installed on a factory specific magazine check out the PARTS+MAG section for current availability. NOT FOR EZ FRAMES. NOT FOR ORIGINAL SHIELD "single stack" FRAMES.