Standard Manufacturing Jackhammer, the "Tommy Gun" in .22 LR 

Standard Manufacturing is an American company based in New Britain, in the state of Connecticut. 

In front of the trigger guard can be seen the latch that locks the magazine in place. The manual safety is a simple reversible lever.

With about 100 skilled employees and the best modern and old-world machinery, it carries out every production step, including finishing, and manufactures every component within the company's walls. Its catalog includes mainly 1911-style pistols, revolvers, shotguns for tactical use, and semi-automatic carbines in .22 LR and .223 caliber.

Some of Standard Manufacturing's designs are truly original, such as the Jackhammer we present on this page, an extravagant gun that is exquisitely American in concept and implementation.

Standard Manufacturing Jackhammer, a "tool" for plinking

The Standard Manufacturing Jackhammer can also use 10-round polymer magazines. 

Already the name – jackhammer – hints at considerable power: actually, that is probably a bit of an exaggeration, but it perfectly conveys the character of this semi-automatic pistol that was not created to achieve competition groupings, but to rip informal targets to shreds while ensuring lots of fun.

It has all what it takes: an original look but inspired by an iconic gun, a stock designed for two-handed shooting, a Picatinny rail to mount a red dot, a 136-millimeter (5.3/8-inch) barrel, and above all, a 50-round drum magazine that inevitably recalls that of the Thompson submachine gun.

The charging handle is an homage to the Tommy Gun too, both in appearance and location on top of the receiver, made of 7075 aircraft aluminum.

Mechanically, the Jackhammer is a semi.automatic pistol with blowback operation and single-action trigger. The pistol grip and the rear section of the receiver are wrapped by a polymer stock that features an M-Lok interface on both sides for accessories, while on the top we find a Picatinny rail for mounting a red dot sight and that also doubles as an emergency sight. 

Without a magazine, this unusual pistol chambered in .22 Long Rifle weighs only 1,100 grams.

The buttstock has an unusual design, being unsuitable for resting on the shooter's shoulder. But this is a specific choice of the manufacturer, who claims that the gun is "suitable for two-handed shooting" to emphasize that the Jackhammer is not a carbine but a pistol, and as such must be considered legally. Indeed, in some states in the U.S., semi-automatic long guns have limitations on sale. For the same reason, the Jackhammer can also use box magazines with a capacity of ten rounds. The weight without a magazine is about 1,100 grams, which is all in all moderate. The controls are located on the left side and are kept to a minimum: a reversible safety lever and a latch that serves to lock the magazine in place. There is no actual release button: the magazine, in fact, fits sideways into the receiver and locks by pushing forward a latch located on the right side. To remove it, the latch must be pulled back.

It is certainly an unusual gun, conceived primarily for informal shooting and perfectly consistent with Standard Manufacturing's highly original designs. Talking about money: in the U.S. the Jackhammer costs $625, which is roughly the same amount in euros. 

Standard Manufacturing Jackhammer specs and price