Pros:

Dual magnums Awesome

Cons:

Model glitching in first person but is fixable

Conclusion:

Great Idea and Quick fix for the Stretching arms.
1.use the 3 person troggle mod
2.switch to third person 
3.pick up both magnums
4.switch back to first person and the arms dont strech 

this worked for me maybe it will for u guys