I bought a Mossberg 500 with a 28" barrel at Dicks on BF . When I tried to fill the magazine as described in the manual with 5 shells , I could only get 2 in . Do the field models come with a factory installed magazine plug ? This is my first shotgun so it's all new to me . After Christmas I plan on getting a shorter barrel and some other accessories like a light and extra shell holder for the stock . Love the wood look of the stock so that is staying . Thanks in advance for any and all replies.

There's a mag limiter in there to comply w. bird hunting laws. Make sure it's unloaded, unscrew the barrel nut and take out the dowel if you want more capacity.

There is a wooden dowel in the mag tube limiting the capacity to two. It is easily removed when you take the tube apart.

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Ok cool .  Thank you.

Yeah man.