"Laylax is a very popular brand for a reason. The barrel is one of the more important parts in the shot, so get a good one. Quality, not quantity. When you're building a sniper get the best possible, especially with the parts that directly affect the shot"
This is the fourth thread you have made about barrels, You can ask a new question in the same thread.
Anywho, I wouldn't go with such low brands. I'd spend the extra and get a high end barrel, it's worth it. Building a sniper is expensive, that's a fact you're going to have to accept if you want to be a good sniper. We can't pick people off from a mile away, so we have to cover every base, do everything with the highest quality anything we can. Best parts, best mods, etc. Otherwise we might as well pack it up, because if we don't go as far as possible we'll pale in comparison to full auto AEGs.
http://www.airsoftextreme.com/store...e.com/store/index.php?main_page=product_info&cPath=443_468_472&products_id=3200
That's the standard 430 mm length, won't even need to put a silencer on.