The stockless MP5A1 incorporates a buttcap with a sling mount for concealed carry; the MP5K series was a further development of this concept.[24] The MP5A2 features a fixed buttstock (made of a synthetic polymer), whereas the compact MP5A3 contains a retractable metal stock. All MP5 full size stocks and braces https://meherb447nfl4.hamachiwiki.com/user