Where the Hush PuppyA(R) differs from bolt-action pistols is in its semiautomatic functionality red-dot capability and LAM mounting options. With the flip of a switch operators can lock the pistol's slide closed for the lowest sound signature possible while also preventing the ejection of a spent case. Flip the switch upward and the pistol is a fully functional semiautomatic Glock 19.The Hush PuppyA(R) comes complete with an Aimpoint ACRO P-2 red-dot sight milled deep within the pistol's slide. This mounting design minimizes the gun's overall profile and allows it to co-witness with factory low-mount sights for an exceptionally streamlined package. With the suppressor attached the pistol is slightly longer than a Glock 34 allowing it to be easily concealed AIWB IWB or OWB as well as carried off body.The unique Hush PuppyA(R) suppressor is designed to meet the demands of those requiring a concealable 9mm suppressor that offers an excellent sound reduction to size ratio. At just 3 inches in length the Hush Puppy suppressor does not require a booster or Impuls device to function reliably and it utilizes user-replaceable wipes for the greatest level of performance possible in such a small package. Ablative material can be added between the wipes to further increase this suppressor's performance should the user require it. Features: Barrel Length: 4 in / 101mm Calibers 9mm Luger Mags Included: 2 Sights: Factory notch and post; Aimpoint ACRO P-2 Muzzle Attachment: Direct-Thread 13.5x1 LH Frame Size: Compact Color: FDE Spec Rate Of Fire: Semi-Auto / Single Shot