Volquartsen Mini Mamba LLV-4 Upper Features The Volquartsen Mini Mamba LLV-4 upper drops onto a Ruger Mark IV or Mark IV 22/45 frame to deliver a dramatically lighter faster handling package without the flex that cheaper lightweight designs introduce. The Cerakote finished machined aluminum receiver sheds ounces while a stainless steel breech preserves the strength needed to handle high round counts in competition. Blowback operation keeps the action simple and reliable and the internal hammer firing system contributes to the upper s clean snag free profile. A stainless steel match barrel at just 3 in length keeps the whole package short and quick to point while still delivering the accuracy Volquartsen barrels are known for. Sighting is handled by a fiber optic front sight for fast visual pickup paired with an adjustable target rear sight for fine zeroing at distance. A Picatinny rail scope base across the receiver gives shooters the option to add a red dot or optic for faster target acquisition. The barrel is threaded 1/2x28 and suppressor ready so a trainer can run subsonic .22 LR through a can without swapping components. At roughly 9 oz this upper keeps the overall pistol light and nimble making it a strong choice for rimfire competitors looking to shave weight and gain speed. Volquartsen Mini Mamba LLV-4 Upper Specifications Manufacturer: Volquartsen Model: Mini Mamba LLV-4 Caliber: .22 LR Barrel Length: 3 Color: Flat Dark Earth Suppressor Ready: Yes Front Sight: Fiber Optic Rear Sight: Adjustable Target Operating System: Blowback Firing System: Internal Hammer Scope Base: Picatinny Rail Barrel Material: Stainless Steel Muzzle Thread: 1/2x28 Compatible Hosts: Ruger Mark IV Mark IV 22/45 Weight: 9 oz Available At: GrabAGun