That's a part of it too!
In actual fact, if you look closely, the whole thing although shown as a Right Hand Side view ALL the details except the counter are Left Hand Side details. In short someone has mirror-imaged the side view and then added a counter!
The first thing I spotted was the small metal plate on the Grenade Pump which I believe attaches the SPAS grip to the real pump action which should be on the left side! Then I noticed the GL Ejection Port and the cutaway in the grip were missing. Then the cocking handle was missing and so on.
EDIT to illustrate the flipped image on the right is a perfect left side view of a Pulse Rifle with the exception of the counter!


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Cheers
Winch
"Yea though I walk through the valley of the shadow I shall fear no evil for thou art with me. And together we'll kick ANY bugs ASS!"
You know who you are!
