(Update July 28th, 2015: I took the SCAR-L with above Guarder two-piece hop up and it functioned flawlessly in about two midcaps’ worth of testing on the field in both semi and full-auto. Consistency was solid and I was actually quite impressed with the range, although this could be attributed to the Maple Leaf 70 degree bucking and tightbore as well. Either way, it worked flawlessly, and seems so far to be an effective fix.)
Perhaps against my better judgement, I accepted a VFC SCAR-L in a trade. I absolutely love the SCAR platform for its handling and aesthetics, but completely abhor VFC’s SCAR for a single reason – the terrible, terrible, terrible hop unit design. It is made of poor quality plastic (leading to sheared hop adjustment wheels), it’s a bit too tight in diameter and thus only reliably accepts VFC hop rubbers, the hop up arm is shorter than standard and thus aftermarket hop nubs/rubbers aren’t nearly as effective in it, and worst of all, it is proprietary. Or so I thought.
Some internet sleuthing revealed that old-school two piece V2 M4 hop up units have been tried and tested in the VFC SCAR with good results. I’m kind of angry at myself for not thinking of it sooner – two piece hop units, like the VFC SCAR hop, are open ended at the bottom, allowing for the lower receiver to swing out during disassembly. Could it work? Could this be the answer to all my VFC SCAR-related problems, and make a solid, reliable platform out of a piece of junk?
The answer so far is: Yes. Read more after the break.