The MP5A4 (fixed stock) and MP5A5 (sliding stock) models, which had been launched in 1974, can be found with 4-position trigger groups. The pistol grips are straight, lacking the contoured grip and thumb groove from the MP5A1, MP5A2, and MP5A3. The selector lever stops are marked with bullet pictograms https://johnnyszehm.blog4youth.com/18471872/an-unbiased-view-of-alliant-blue-muzzleloader-50-gr-pellets-24-from-bulk-editalliant-blue-muzzleloader-50-gr-pellets-24