The Miroku MK38 sporter is built to last and handles great allowing it to be used for all disciplines. Feeling slightly heavier and chunkier than its B525 brother the MK38 appeals to a large number of shooters. Features an adjustable trigger to slightly alter the length of pull for optimum comfort and Teague chokes designed to pattern brilliantly through the back bored barrels. Comes with the Miroku 3 year warranty. Specifications, Calibre 12 gauge, Weight 3.5 Kg, Chamber 76mm (3"), Barrel Back bored, Chokes 2 x Standard Invector Plus ( Cyl, Full) and 3 x Teague Invector Plus (1/4, 1/2, 3/4), Top rib 10mm, Barrel finish Blued, Sights Front Sight with mid bead, Action frame Steel, Wood grade Grade 1 satin varnish, Length of pull 14 3/4", Recoil Pad Vulcanite, Stock dimensions Drop at comb 36mm, Drop at heel 56mm, Please Note Specifications taken from manufacturers website and may not be current or entirely accurate.