Smith & Wesson M&P CO2 BB Gun – My Full Detailed Review

Smith & Wesson M&P CO2 BB Gun Ultimate Review

This Smith& Wesson Pistol is available in two models. The dark earth brown, and an all black version. This particular air pistol is a replica of  the real Smith & Wesson M&P used by police and  the military .

Its velocity is rated at 480 fps and the M&P has a  drop out BB magazine for added real looks. The gun is double action only.  Which means the trigger is used to cock and fire the gun in one trigger pull.


Smith & Wesson M&P CO2 BB Gun - My Full Detailed Review



Manufacturer’s Specifications:

  • Weight: 1.50 lbs
  • Barrel Length:4.25″
  • Overall Length: 7.50″
  • Loudness: 3-Medium
  • Capacity: 19 round(s)
  • Barrel: Smooth bore
  • Front Sight: Blade and Ramp
  • Rear Sight: Fiber Optic
  • Scopeable: No
  • Trigger action: Double-action
  • Suggested for: Plinking/Fun
  • Powerplant: CO2
  • Safety: Manual
  • Velocity: 480 fps
  • Repeater: Repeater
Smith & Wesson M&P CO2 BB Gun - My Full Detailed Review
The M&P is constructed of  plastic with metal internal parts.  It is powered by a single standard  12g CO2 cartridge inserted into the hand grip behind a pull out grip  panel.

The Gun features fiber optic sights. The magazine release button is  located on the left side near the trigger guard, while the safety switch  is on the right. The safety requires you to push in first then slide  it on or off.  This prevents accidental unlocking of the safety knob

Smith & Wesson M&P CO2 BB Gun - My Full Detailed Review

The Smith & Wesson M&P uses a 19 shot magazine.  This magazine is the same one  used in the Beretta Elite II, and the Crosman C11/C21/C31/C41 pistols.

Underneath the barrel of the Elite II is a Picatinny style rail for mounting accessories such as a laser sight, flashlight, etc.

Smith & Wesson M&P CO2 BB Gun - My Full Detailed Review

The M&P Pistol features a blade and ramp style front sight and a fiber optic rear sight.  This allows for quick acquisition  of the target.

Smith & Wesson M&P CO2 BB Gun - My Full Detailed Review

To load BB’s into the magazine is easy.  Just pull the sliding follower all the way down until it catches  and stays locked.  Drop BBs through the hole in the magazine until it’s full.  Next put the clip into the gun and you should be ready for the fun.

Sometimes the locked follower would not unlock and no BBs could be fired.  This seems to be  because the hook on the bottom of the follower is a little too aggressive  and hangs on to the bottom of the magazine.

The fix is simple.  After loading BBs into the clip, make sure the hook is released before putting it into the gun. This will require a bit of fidgeting with the hook a  bit until it gives in.

One more stumble with this pistol is if a clip is released with BBs still in it. What occurs is a BB will  drop out of the magazine well. This seems to happen because the top BB  is released from the magazine when the magazine is being inserted.

Smith & Wesson M&P CO2 BB Gun - My Full Detailed Review

 The Testing and Testing Methods:

  • We will be testing the accuracy
  • shots per CO2 cartridge
  • Trigger Pull
  • BB velocity
  • and loudness of the pistol
  • Temperature of the room is 73ºF
  1. For accuracy the pistol will be used  in a  gun rest
  2.   A new CO2 cartridge will be used
  3. Five  shots will be fired with a 15 second rest between shots
  4.  We will be using Daisy Premium grade BBs which have given us good results in the before.
  5. Trigger Pull will be measured with a trigger gauge in lbs of force.
  6. The target will be set for 15 feet away.
  7. Shots per CO2 will be tested by firing shots with15 second rests, till the performance of the pistol wanes.
  8. Loudness will be measured with a dB meter.
  9. BB Velocity will be measured as an average of 5 shots through a Shooting Chrony.

Smith & Wesson M&P CO2 BB Gun - My Full Detailed Review

The Results:

  • Accuracy: .75″ grouping
  • Shots Per CO2 Cartridge: 110-120 shots.
  • Trigger Pull: 5.1 lbs
  • BB Velocity: 448 fps Average 
  • Loudness: 95 dB

This Smith & Wesson is a pretty decent  budget pistol.  It provides good accuracy, high shots per CO2  cartridge, and it won’t hurt your Bank account.  This gun would be a good  choice as a first BB gun for a novice. One more nice thing to say about this pistol is you can buy extra clips for it.   A pack of 2 will set you back about $16.

The Pros:

  • Good accuracy
  • Accessories Rail
  • Good CO2 Usage

The Cons:

Annoying magazine spring release

The Rating:


Good enough

Where to find a good deal



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