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The Baikal MP-153 is a 12 gauge gas-operated semi-automatic shotgun manufactured by the Izhevsk Mechanical Plant in Russia.〔(【引用サイトリンク】url=http://imzcorp.com/en/company/95.html )〕 The shotgun is available with 12/76mm or 12/89mm chambers and either 610, 650, 710 or 750 mm barrels. The MP-153 is manufactured with fixed choke available as Cylinder, Modified or Full variants, or with screw in chokes with Cylinder, Improved Cylinder, Modified, Improved Modified, Full and Extra Full variants available. Normally there are 3 or 4 chokes included with multi choke variants of the shotgun and a spanner that duplicates as a choke extractor and gas screw adjustor. Screw in chokes come as lead or steel proofed versions. ==History== Development began in 1997 of a 12/70mm unit based on the IZH-81. With increasing market demand for 12/89mm guns, further development of a gun capable of firing light skeet and trap load as well as heavier magnum game loads commenced in February 1999〔(【引用サイトリンク】url=http://imzcorp.com/res_en/0_hfile_394_1.pdf )〕 The developers retained characteristics from the IZH-81:- *barrel locking by a single, retractable lug on the top of the bolt that cams into a recess cut into the barrel extension (analogous to the J.M. Browning patent and applied in Remington 870 model and its semi-auto options; *under-barrel tube magazine.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Baikal MP-153」の詳細全文を読む スポンサード リンク
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