Alexander talks about tthe Slong Carbine Kit for compatible G17 GBB pistols mainly Tokyo Marui, KJ Works, WE and VFC available at Airsoft-Rus... "Designed for installation of full-size Glock pistols in it - 17 and 18C That will allow you to turn the pistol into a compact submachine gun (in the presence of automatic fire) and install various accessories - a sight, a flashlight, a grip, etc.

Versions 34 and 35 with an enlarged barrel and frame will not fit due to their length.

The kit is compatible with Glock pistols from manufacturers - Tokyo Marui, KJW, VFC, WE.

In a sense, such a product as a holster-butt, which was produced, for example, for Mauser C-96 and APS pistols, can be considered its prototype. The accuracy of firing from the specified weapon with an attached holster-butt is noticeably increased, but its cumbersomeness in carrying negates all the advantages it offers.

The modern carbine kit is designed to improve the convenience of holding the weapon when firing from hands and from the shoulder rest, increase the length of the aiming line, and provide the ability to install additional accessories."