Customer Service & Help 1-866-477-4867
Free Shipping Available

Winchester MP4 Semi-Automatic CO2 Rifle

Shoots Pellets & BBs
Item #: 990004-402
Winchester MP4 Semi-Automatic CO2 Rifle
Winchester MP4 Semi-Automatic CO2 RifleWinchester MP4 Semi-Automatic CO2 RifleWinchester MP4 Semi-Automatic CO2 RifleWinchester MP4 Semi-Automatic CO2 RifleWinchester MP4 Semi-Automatic CO2 RifleWinchester MP4 Semi-Automatic CO2 Rifle
In Stock
Only $169.99
MSRP $199.99| Save $30.00 (15%)
Suggested Use: Plinking/ Target Shooting/ Fun
Mag. Capacity:16

The Winchester MP4 Co2 air rifle has a tactical style and features that will make you fall in love with shooting all over again. The quad weaver/ picatinny rail gives you plenty of options to mount your favorite optics to your liking. Already equiped is a flip-up front and rear adjustable sight, so you'll be ready to aim and fire immediately. Exclusive to the MP4 is the textured pistol grip and adjustable buttstock that will leave you feeling dexterous as you shoot. Hidden away in the magazine are the two 12g Co2 cartridges that power the MP4 and the 16 round clip. The dual ammo rifle shoots .177 caliber pellets or BBs at an outstanding 700 feet per second.


  • Powered by (2) 12-gram CO2 Cartridges
  • Semi-Automatic
  • 16 Round Double Sided Clip
  • Co2 Clip Quick Release Button
  • Shoots Pellets or Steel BBs
  • Rifled Steel Barrel
  • Adjustable Buttstock
  • Flip-up Front Sight
  • Flip-up, Adjustable Rear Sight
  • Composite Stock
  • Metal Receiver
  • Manual Safety
  • Finger Grooved Pistol Grip
  • Integral Weaver/Picatinny Quad Accessory Rail System

Please Note: Do not shoot steel BBs at hard objects or water. They will ricochet! Remember to wear safety glasses. In fact, everyone in the vicinity of the range should wear safety glasses, even if they're not shooting. Remember to remove all pets from the range before you start shooting.

MSRP $199.99
Our Price $169.99 Save $30.00 (15%)
airgun mechanismCO2
ammo typePellets & BBs
magazine capacity16
airgun usePlinking/ Target Shooting/ Fun
gun weight4.4
product conditionNew
warranty1 Year Limited
Winchester MP4 Semi-Automatic CO2 Rifle
4 Stars based on 2 Review(s)
germansville, PA
4 Stars
I would recommend this item to a friend.

pretty sweet
October 12, 2014
This is a very nice rifle for the price. almost an exact replica of a M4 and loads of fun to shoot. not very accurate with the iron sight in my opinion. but i didnt expect much accuracy out of it, i plan on buying some accessories for it like a sight and foregrip just for some added realism and possible more accuracy
very accurate replica smooth semi-auto action easy to use lots of fun
not very accurate

Cest hill, Illinois
4 Stars
I would recommend this item to a friend.

Fun gun
January 3, 2014
fun gun to go out and shoot. haven't had a chance to sight in my scope yet due to the cold weather but I'm sure I'll find time to do so. solid gun design but for some reason when firing I did notice that the barrel was loose so I did have to go back and tighten up the screws and this solved the issue. I ended up running 72 rounds of bbs through before I changed co2. Those last 20 rds the accuracy fell a lot. and I dunno if its due to the cold or what but the trigger would hang up and I would have to pull back the bolt to fire another round. it was hit or miss on that but could get really annoying fire 3 nothing then you bull back the bolt fire bolt fire bolt fire then it will shoot off the rest off fine.. dunno if it persist but if so ill update.
Holds 16 rounds 8 per side of clip solid design not super loud compared to other guns I have fired great balance when holding
loose barrel out of box wobbly stock semi auto not working 100% have to to pull bolt back every other round or so...

Related Items

Winchester 1100WS Air Rifle
MSRP $135.95/Only $109.99
Winchester 1250CS Air Rifle
MSRP $219.99/Only $179.99
Winchester 1250SS Air Rifle
MSRP $175.00/Only $136.99
Winchester 1250WS Air Rifle Combo
Price Drop: Save $25!
MSRP $195.95/Only $159.99
Warning! You must be 18 years of age or older to order and conform to all laws governing the use and ownership of airguns in your local area.
All airsoft guns have 1/4 inch of the barrel permanently colored in blaze orange. More info
©2014 Airgun Depot. All rights reserved.
Free Shipping

Get free shipping on all orders over $179! When your order qualifies, choose Ground Shipping during checkout. Available to customers who ship their orders in the lower 48 states.

more info
Same Day Shipping

Order by 12pm MST (2pm EST). Items in stock at our Utah warehouse will ship the same day. Some restrictions apply.

more info
Free Pellet Tin

Add any 8 tins to the cart & 2 will be free. Mix & match or order all the same, either way you get the two lowest priced tins for free.
Pellet Promo - Buy 8 & Get 2 Free