[waltfraz]

I bought stainless older frame contender,trying to install barrel is their a easy way to line up hinge pin?

 

[CleanDean]

The Armour Alloy version, requires a smaller diameter hinge pin. Due to the plating the tolerances are different . Fitting for one type of finish is necessary. ....Once done; to mix & match different finish barrels to the blue and alloy plating - frames & pins... are still not guaranteed to be interchangeable.