by vulrath » Mon Jan 30, 2012 6:52 pm
Are you looking to build a TRUE airsoft sniper rifle (single-shot only, field max FPS), or are you looking to build a DMR (middle-of-the-road FPS, usually 3-round burst)? That's the first question you need to address.
If you're looking to build a sniper rifle, then you're going to have a MED of usually 100' at most fields you go to, which will negate most of the advantages of the AEG platforms. You can build quite effective rifles off these systems (prime examples: SR25 and TM/G&P M14 platforms), but the only advantage you'll retain is the ability to make quick follow-up shots. You'll have to remove full-auto entirely.
If you want a DMR, then you'll probably be in a MED bracket all your own - I know on our field it's 50' for DMRs and SAWs. You'll probably need to either do away with full auto or convert to 3-round burst by means of a MOSFET with an onboard microcontroller. Again, these can be quite effective given the proper amount of tuning.
Either of these options is going to cost money - you might as well make peace with that now. An M4/SCAR with a stock gearbox, tightbore barrel and scope does not a sniper make automatically. There is much more to it, and I wouldn't attempt to build either on my own without prior experience working with AEGs.
And Fluffy, you hit the nail on the head. However, I disagree with your assertions about the G&G M14. I have a CA (which uses the same design for the gearbox) and I despise the gearbox. Nothing but problems since Day One, even after dumping $150+ into the gearbox. The Marui is 100% better. Hella expensive, but all around better.