Customizable frame measurement Each and every GLOCK Gen5 comes with beavertail backstraps in two measurements. The backstrap frame allows the end users to change the circumference of the grip to suit their particular person hand dimensions. Gen4 RTF - Tough textured body The Gen4 proven rough textured frame surface area https://trevorcpyku.mybjjblog.com/the-definitive-guide-to-g17-gen5-mos-43919983