X-BOW FMA Supersonic Upgrade Kit - Stock & Trigger With the X-BOW FMA Upgrade Kit every Supersonic and Supersonic REV can be transformed into an XL model. No matter whether the short basic version is to be extended by a long stock or whether you want to exchange the AR-15 stock for an M4 stock, it is possible without any problems. The existing grip of the Supersonic can be dismantled and a longer stock from the upgrade kit can be fitted in just a few steps. With the short X-BOW FMA Supersonic, the only thing to note is that the trigger also needs to be replaced, as the XL variants have a slightly higher build and use a longer trigger. Triangle- or L-Stock - Two variants, two styles With the extended stocks in Triangle- or L-style, the Supersonic fits even better in the hand and can be optimally adjusted to each shooter. The material is a high-quality, glass fibre-reinforced and heat-resistant plastic with a non-slip surface. The Triangle-Stock gives the Supersonic an ultra-compact and minimalist A-frame design. This shape offers extended cross-bracing and thus creates the strikingly eye-catching triangle shape. High stability as well as easy access to the optimally positioned length adjustment of the shoulder rest are the features that future owners will love from the start. The stock combines strong design with excellent ergonomics. The L-Stock, on the other hand, comes in an L-frame design. This shape gives you several advantages and uses. The open shoulder rest is extremely light and can also be used as a handle or for hanging on a corresponding device. The slim shape cleverly picks up on the aesthetics of the Supersonic, spanning a successful design arc between the handle and the shoulder section. Good to know - with the additional stock, the Supersonic XL brings it to a maximum length of 67 cm. Thanks to the option to adjust the length, an adjustment to a minimum of 61 cm is possible. By removing the reel seat, a further 2 cm can be saved. Depending on the configuration chosen, the XL version is thus between 19 and 25 cm longer than the compact Supersonic without shaft.
