The front sight, which is an M-16 adjustable-post type, is incorporated over the gas block and is not removable. The barrel is threaded at the muzzle, and can be mounted with accessories, such as a flash-hider. The C has a medium-weight barrel, presumably in response to the criticism against the lighter barrel of the B model. The SU-16C has a true folding stock as it can be fired with the stock folded, rather than the folding stock and trigger group design of the other weapons. The B model has been criticized by some users for the light construction of its barrel, which is said to be too light for sustained firing. The SU-16B has the same features of the A model, but has a lighter barrel, an M-16-type adjustable-post front sight, and a windage adjustable rear sight. The stock has a hollow recess with spring detents capable of holding two 10-round magazines or one 20- or 30-round magazine. The fore-arm of the rifle opens out into an integrated collapsible bipod.
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The stock and trigger mechanism fold down below the upper receiver and clamp to the barrel when the weapon is broken down (the weapon is non-operative when in this configuration). A Picatinny rail is equipped on the top of the receiver. The SU-16A has an 18.5 in (470 mm) barrel and comes with a windage-adjustable hooded light-gathering blade front sight mounted near the muzzle.
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SU-16CA, with added pistol grip, collapsible stock, telescopic sight, and flash hider While the barrel, bolt-carrier and mechanism are steel, the SU-16's stock, receiver, and forend are manufactured of high-strength polymer plastic.
KEL TEC KSG SERIAL NUMBER LOOKUP SERIES
The SU-16 series is notable for its compact, lightweight and simple design and for being able to be broken down and folded into a compact configuration for transportation and storage.
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of Cocoa, Florida, referred to in Kel-Tec's marketing as "Sport Utility rifles". SU-16 refers to a series of semi-automatic rifles and carbines manufactured by Kel-Tec CNC Industries, Inc.