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Sorry we don't ship the magazine +2 Adapters to customers with a billing or shipping address in states or jurisdictions that have magazine capacity laws. Mec-Gar plus 2 adapter and the special L shaped magazine locking plate/magazine inserted needed to use them. The plus 2 adapter adds 2 extra rounds of capacity to the Mec-Gar magazines listed below. These are not the same plus 2 adapters used on the Mec-Gar Sig Pro, P228, P229 or P229-1 magazines and they won't work on those magazines. They also don't work on the standard Sig factory P226 (with metal base plate), P228, P229 or Sig Pro magazines or the CZ 75B 16 round or CZ  75 Compact magazines. THE REAR OF THE +2 ADAPTERS L SHAPED LOCKING PLATE/MAGAZINE INSERT NEEDS TO BE INSTALLED ON THE  REAR OUTSIDE OF THE MAGAZINE TUBE TO HOLD THE +2 ADAPTER ON.

UPC: 765595510173


Replacement floorplate set to increase the capacity on Mec-Gar Optimum Series flush fitting magazines


  1. Polymer "Plus-2" magazine extender
  2. Phosphate steel locking plate, heat-treated

Fits on the following Mec-Gar magazines:

  • MGPB9210 B/N - Beretta 92FS 9mm 10rd (dimpled) - Does not add capacity
  • MGPB9215 B/N/P - Beretta 92FS 9mm 15rd - (dimpled) - Does not add capacity
  • MGPB9218AFC - Beretta 92FS 9mm 18rd - Adds 2 rounds
  • MGPB9220AFC - Beretta 92FS 9mm 20rd - Does not add capacity
  • MGPB9610 B/N - Beretta 96FS .40 10rd (dimpled) - Does not add capacity
  • MGPB9613AFC - Beretta 96FS .40 13rd - Adds 2 rounds
  • MGPB9615AFC - Beretta 96FS .40 15rd - Does not add capacity
  • MGCZCOMP10B - CZ 75 Compact 9mm 10rd (dimpled) - Does not add capacity
  • MGCZCOMP15AFC - CZ 75 Compact 9mm 15rd - Adds 2 rounds
  • MGCZ7510B - CZ 75B 9mm 10rd (dimpled) - Does not add capacity
  • MGCZ7517AFC - CZ 75B 9mm 17rd - Adds 2 rounds
  • MGCZ7519AFC - CZ 75B 9mm 19rd - Does not add capacity
  • MGCZ4010B - CZ 75B .40 10rd (dimpled) - Does not add capacity
  • MGCZ4012AFC - CZ 75B .40 12rd - Adds 2 round
  • MGCZ4014AFC - CZ 75B .40 14rd - Does not add capacity
  • MGP22618AFC - Sig P226 9mm 18rd - Adds 2 rounds
  • MGP22620AFC - Sig P226 9mm 20rd - Does not add capacity
  • MGP2264013AFC - Sig P226 .40 13rd - Adds 2 rounds
  • MGP2264015AFC - Sig P226 .40 15rd - Does not add capacity
  • MGPT9210 B/N - Taurus PT92/99 9mm 10rd (dimpled) - Does not add capacity
  • MGPT9215 B/N - Taurus PT92/99 9mm 15rd - (dimpled) - Does not add capacity
  • MGPT9218AFC - Tarurus PT92/99 9mm 18rd - Adds 2 rounds
  • MGPT4010 B/N - Taurus PT100/101 .40 10rd (dimpled) - Does not add capacity
  • MGPT4013AFC - Taurus PT100/101 .40 13rd - Adds 2 rounds
  • MGPT4015AFC - Taurus PT100/101 .40 15rd - Does not add capacity
  • MGWIT9SF10B - Witness Small Frame 9mm 10rd (dimpled) - Does not add capacity
  • MGWIT9SFAFC - Witness Small Frame 9mm 17rd - Adds 2 rounds
  • MGWIT40SF10B - Witness Small Frame .40 10rd (dimpled) - Does not add capacity
  • MGWIT40SFAFC - Witness Small Frame .40 12rd - Adds 2 rounds
I have also had customers use these on the Springfield and Mec-Gar XD, S&W M&P 9mm, .40 and .357 Sig, Canik 55 Compact 15 RD 9mmCanik TP9 SA, Century Arms MAG TP9SA 18rd (Canik TP9SA, TP9SF and TP9SFX magazines) Model # MA548, Ruger SR9, Kriss Sphinx SDP Subcompact. 

They can also be used on the CZSP01 18 round factory magazines. When used on the CZSP01 18 round magazine you end up with a 20 round extended magazine.
  • Model: F42099-SET +2 POLYMER BASE MAGS
  • Manufactured by: MEC-GAR

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Scott M.
5 of 5 Stars
Fit my p10s. The last round was hard to get but works. I mainly bought to extend the grip. Fits better in .y hand.
Dale Ray
5 of 5 Stars
Purchased for Canik TP9SF Elite. These are a perfect match for the Canik magazines. Makes the 15 round Elite mags into 18 round mags. Easy to install. Work flawlessly. Fast shipping.
Billy Brown
5 of 5 Stars
Works fine with zero problems or hiccups in my S&W original M&P 40C 10 round mags. Takes them to 12 round with no problems thus far. And you can believe this or's real...I actually get 13 in one of the two mags (that's 13 inside one of the 10 round mags). I ordered these to test out after seeing the comments and pictures on the S&W forum (older posting) when someone posted a question looking for a possible +2 option for the original 40C (10 round mags). Put one in the chamber and ran 13 in the mag for a total = 14 and had no problem with this true compact running them & cycling them through lickidy that's FMJ's as I just got these yesterday (6-15-'19) and all I've done so far is spit out FMJ .40's....will test out HP's later (it's Fathers Day so I'm busy). But needless to say I was quite surprised that one magazine took 13 rounds....your mileage might vary. You will need to do some sanding on the front lip of the +2 extension to cut the sharp lip or your ring finge
Rodel Salazar
5 of 5 Stars
I had previously ordered these for my MP9 Compact and loved them. So I decided to order them for my MP9 Full Size and they work like a charm. Just returned from the range and they had no problems cycling. Now I have 19 round capacity in my M&P9. Tomorrow will try them out on an IDPA match. Highly recommend these. Oh and fast shipping from Greg Cote, never had any issues with my orders. Thanks and keep it up.
Rodel Salazar
4 of 5 Stars
Ordered for my M&P 9C on Sat and it arrived on Monday. Fast shipping, really appreciate it. Install was straighforward and although the plate extends forward of the grip (not flushed), the fit is pretty good. Fits 14 rounds no problem and I cycled the rounds a few times and they did. Obviously I will have to test it out on the range to make sure I don't have any malfunctions. I did notice that the empty mag does not eject as readily as it did with the stock base plate. This probably has to do with the fact that it extends 2 rounds while using the stock springs. Will have to practice mag exchanges during the range to see how it really functions and adjust accordingly. So far so good and hope they function well at the range so that I can trust them as my carry mags.
Kevin Pollard
5 of 5 Stars
Worked well for four czp07 magazines. I changed all 4 in about 25 minutes. 2 of the mags were gen2 p07 and 2 Gen 1 P07. I was able to get 16 rds loaded in each...17 would have tight. I was after the pinky grip as well and it worked great.

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