Boyi D-Boys 5381M SPR MK12 Airsoft Rifle Metal
- Velocity: 380 FPS (0.2 g BB) / Range 190-220 Feet
- Barrel Length: 18.5 inches / 47 cm
- Magazine Capacity: 200 Rounds
- Full Metal Forend!
- Included Bipod
- Battery and Charger Included (Large)
- Airsoft Gun Review Available - Click More Info
- Made in China
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Boyi D-Boys SPR MK12 is of full metal construction and is built like a tank. Its shortened magazine allows for prone firing as it clears the ground. It features a lightweight modular rail so you can add any accessory to the gun. The gun also includes folding front and rear sights and a bipod.
- Real Steel Information
- Initial Impression
- Included accessories
- Magazine and Loading
- Hop-Up Adjustment
The Boyi / D-Boys Mk12 Mod 0/1 SPR is an excellent mid-term AEG (Airsoft Electric Gun) for those of you who do not to spend a lot more but would still like a full metal, solid & adaptable sniper platform. It is the first SPR (Special Purpose Rifle) variant in the low to mid $100 available on the market.
Real Steel Information:
This weapon system, used by Special Forces units of both the US Army and US Navy, is a heavily modified deviation from the familiar AR15/M16 line of infantry weapons, and thus is chambered for NATO standard 5.56 x 45 mm caliber ammunition. It serves a light sniper/designated marksman role. The SPR was originally proposed by Mark Westrom, currently president of Armalite, while at the Rock Island Arsenal. The SPR program was an outgrowth of the desire by both US Army and Navy special forces for a rifle with greater effective range than an M4 type Carbine but still shorter in length than a standard issue M16A2/A4. The SPR program appears to have grown out of both the SOPMOD Block II program, and the U.S. Navy SEALs 'Recon Rifle' (a 16" flat-topped AR-15/M16 Carbine). The Naval Surface Warfare Center, Crane Division (often referred to as NSWC-Crane or just Crane) essentially expanded on the Recon Rifle, an idea that some SEALs maintain was a waste of energy and money.
The exact history of the Mk 12 is still something under debate, but it has become apparent that there are between four and five prime iterations of the weapon, culminating in the last Mk 12 Mod 1 version. One progression has four models: SPR Proto 1, SPR Proto 2, Mk 12 Mod 0 and Mk 12 Mod 1. The other progression is: SPR, SPR/A, SPR/B, Mk 12 Mod 0, and Mk 12 Mod 1 (all as separate iterations). The specifications entered will follow the second progression.
The SPR came in a neatly package brown box with the marking BIM4 SERIES BI-5281 or BI-5381 on the top. All the accessories have their perspective spots in the box which makes the whole packaging's outer appearance looks professional. The gun is quite heavy and solid to hold given the fact that the receivers, one-piece outer barrel, free-floating RIS as well as the gearbox are all metal. The weight of this monster is actually comparable to a real steel AR-15.
- Short Type Metal 300 Round Hi-Cap Magazine
- Harris-Style Spring Loaded Full Metal Bipod
- Nylon Vertical Foregrip
- 8.4V 1500mAH Large Battery & Charger
- 2 Nylon Rail Covers
- Owner's Manual
- Cleaning Rod
The AEG includes lots of features and parts duplicated perfectly from its real steel form.
- Metal Receivers
- Metal One Piece RIS (Rail Integrated System)
- Metal One Piece Outer Barrel
- Metal Flip Up Adjustable Front and Rear Sights
- Nylon Vertical Foregrip
- Metal Spring Loaded Bipod
- Metal Flat Top for Mounting Optics
- Functional Charging Handle - Opens the dust cover to reveal the hopup adjustment
- Forward Assist Bolt pushes in but not functional
- Full Stock
- 7mm Reinforced Metal Gearbox
- Metal Hopup
- Brass Barrel
The front and rear iron sights are windage and elevation adjustable. The front sight can be folded down by pushing the metal button on the side. The rear sight can be locked down by pushing the metal lever into its locking perch and is also detachable. Both can be folded down for an unobstructed view when optic is in use.
The gun has 2 rear metal sling mounts, as shown below. One at the end of the stock for a traditional 3-point tactical sling configuration.
The sling loop shown below can be utilized with a single-point sling for a faster transition to your secondary.
Unfortunately, it did not include a front sling mount. So if you want to use the 3-point sling, a sling adapter must be purchased.
The battery included with this gun is a standard 1500 MAH large type NiCad battery. It sits well in the stock but does have a little room to move around which is not a bad thing if you want to upgrade to a custom configured battery. *think 9.6v for faster ROF*
The grip very comfortable to hold with a thumb rest and conforms to the operator's palm nicely.
The included screw-on type vertical foregrip is made of strong nylon and feels very sturdy to hold. Excellent addition for the operator when firing without using the bipod.
The spring loaded Leaper style bipod is a very nice feature of this gun. The RIS adapter is included and required to mount the bipod onto the rifle.
The adapter attached to the bipod with a ball joint. It snaps onto the bipod then unscrew to mount on the RIS. The spring loaded legs folds down by pulling and the same when you want them folded up.
The legs are also extendable. To extend them, press the metal button on each side of the legs and pull the legs down. They each have a locking perch to extend them individually to various length.
The RIS (Rail Integrated System) is full metal and built very, very well. It also includes 2 rail covers to protect the operator's hands when vertical foregrip is not in use. One bad thing about them is that they don't lock in place even though both of them have metal clips. But they are only movable by hand and won't slide around on their own.
-Magazine and Loading-
The metal magazine included is the short type which will remind you of the early Vietnam era M16s. It also has the advantage being short so when the operator is laying down for sniper work, it won't be intrusive and make the rifle unstable to fire from. The BBs are loaded from the trap door on top of it and will hold about 300 according to the manual. Works just like any hi-cap magazine with the wind wheel on the bottom. The mag fits tightly in the mag well and will take some yanking to remove it *think push-pull*. It feeds the BBs without any misfire, nor a jam.
The hopup adjustment is located behind the dust cover which springs open when the charging handle is pulled back. The dust cover stays down until you manual close it just like the real steel but you obviously won't feel a round being chambered when the charging handle springs back in place but it does offer a good realism.
The selector switch clicks positively into safe, semi, and auto. Unfortunately the safe, semi, and auto insignia are painted, not engraved on the receiver, so they might wear off with use.
The flash hider screw off counter-clockwise.
The free-floating RIS can be removed by turning the delta ring which will be necessary if you want to remove the complete front end or outer barrel assembly. The fake gas tube is a nice touch though.
To remove the stock cover plate, simply unscrew the two screws and the sling mount will detach when the bottom screw is removed.
To field strip the rifle:
Use an appropriate hex key to remove the screws on both end of the lower receiver. Then gently tap the locking pins to remove them from the opposite end. Slide the upper receiver towards the muzzle side and the lower receiver to the stock side.
The receivers should now look like this.
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This airsoft gun is not to be misrepresented as a real firearm or gun that is manufactured by Knight's Armament and is merely an airsoft gun that fires 6mm pellets. The manufacturer of this airsoft gun is Boyi/DBoys.
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