Leo Greer

I put together an “Airsoft Medkit” that’s basically a briefcase filled with tiny plastic shelving units. I can carry all my tools, adhesives, and enough spare parts for a complete internal rebuild of two RIFs. It’s saved my butt a few times. Just make sure you include the essentials; super glue, emergency crackers, a backup to your backup screwdriver…

I run an M170 (SP150) in my V2 DMR @ 2J exactly on .48gs. I run it on XYT 18:1s and a T238 33K @ 11.1v and it has no trouble cycling. You can also pair a good high torque with something like a 20:1 set or even 32:1 if you really wanna be careful.

Bootleg method: micrometer. Turn the BB and keep measuring.

Being from the USA, what would I bring over? Street tacos from Texas is probably No. 1 on the list. But as for airsofty things… you can actually bring a RIF. It just needs to be in checked baggage and inside a case (I believe PIN locked for Airsoft). Heck, it’s legal to bring your real steel pistols and rifles around in checked baggage. I have a TSA approved case for my Sig 365. on the other hand, depending on where they live, I’ll second the motion to find a surplus store. You can get just about anything if you’re in the right spot.

Honestly I'd use the Ifrit with 13:1s and 11.1 or 7.4 and call it a day.

Lower TPA means higher RPM (generally). That SHS "High Torque" (not really) has about 35,000 RPM with an 11.1v, or 66% on 7.4v

I haven't listened to the video yet, as my laptop hates Imgur, but as a note, if that build is running properly, you should be in between 25 and 28 RPS, which is really approaching the PME point. Make sure to check the FPS to see if there's any drop in full auto, or if you have lower RPS than 25! Either one is a sign of PME.

The one question I have (and this is hearsay, so mind yourselves), is that I've heard most airsoft brushless motors actually incorporated a ramping program specifically to slow down the startup, as early models had a habit of snapping their shafts. No clue where I heard this, but maybe something to look out for...

I clean the inner barrels once a year with my tears

Thanks everyone for the suggestions! I'll keep the museum and activity ideas close and do some research. I know we're going to be in Inverness, but I think we'll be all around the area for a week or so. We were in the Hounslow area by London-Heathrow for a couple days, and we've actually hopped to Madrid for a bit, but we'll be back in the U.K. in a few weeks. Definitely taking advantage of the food. I come from an area of the USA that offers a lot of culinary variety, but the best part about new countries is always the eating, and London seems to have a lot of great ethnic cuisine. We already grabbed some Indian food the other night, and I suspect there will be more to come.

I'm in London currently, and I'll be back through Scotland in a couple weeks as well as the north of the country. Unfortunately I can't swing any airsoft days, but is there anything else I shouldn't miss?

As a note to the original question... When in doubt, Retro Arms low profile bushings are the way to go. I've run them from 60 RPS to over 2J.

He still hasn't mentioned the Mah and discharge rating, so we really have no clue what kind of amps he even has to work with. If it's something like an 800 Mah 20C that's realistically more like 450 Mah 10C that's only 5A to work off. Most stock AEGs need about 15A. edit I've been through a fair lot of LiPos in the "1450 Mah 30C" range that turned out to be more like 800 Mah 10C when tested. Voltage means nothing.

I should add, all this is discounting the strong tendency of airsoft battery manufacturers to lie about the capacity and discharge ratings they advertise. You could very well be using a battery that has only 60% of it's advertised capacity and 50% of the discharge, thus skewing the apparent performance of your RIF far away from accurate. My personal pack I spoke of in the above post (Kypom 3S butterfly 2200mah) has actually been tested at 2106mah, so the capacity is pretty close to advertised by airsoft standard. And this is by far one of the best packs in this range, which may contribute to a higher apparent "shots per man" rating.

I'm gonna have to tell this one to my father...

The FPS itself will change by a margin of maybe 1-1.5% depending on humidity, altitude, and temperature, but by and large the consistency I can achieve is the same. That build was built and chronoed at ~800 feet above sea level, 75 degrees F, 50% humidity. I recently put together a new DMR build shooting 300 FPS on .48g w/ ~1 FPS variance, and tested at ~8,000 above, 20 deg. F, and 75% humidity. I do a rigorous set of stabilization mods designed to create an extremely consistent hop rubber to nozzle seal, and I think that really makes the difference. Basically, I make sure the barrel and hop unit can't move whatsoever, and that the hop unit is pressed solidly to the gearbox. Hop unit springs are the enemy, cork and plastic shims are the best. I'll see if I can try some "varied environment" testing with the same build and report back. I'll make it into a separate thread though!

As stated, this is heavily subjective. I'd suggest establishing an approximate baseline for your own build through testing and work off that. For example, I run my primary off a single 2200mah 11.1v pack, which lasts me for approximately 5,000 shots before I hit LVC ranges. (brushless, well shimmed, etc, etc) Other builds are a lot less efficient...

This is true. My advice is to simply make your head less of a target, or wear a full chainmail suit underneath your eyepro. Personally I use a simple mesh face mask that covers my ear area and a set of Esse military surplus goggles that seem to attract BBs... which works great.

I will point out that, in practice, HPA can often be less FPS consistent than a properly set up AEG. This is because HPA guns typically have more seals inside the engine than an AEG, which has two major seals. I typically tune my AEGs to either ~1 FPS variance or ~0.5 FPS variance. And even better can be done, I'm just not quite picky enough. The true mad lads will be sorting their BBs by the hundredth of a gram to get even better consistency. In THIS thread, scroll down and I have a pic of my primary (AEG) shooting at 27 RPS with an FPS consistency of about +-0.8 FPS. edit And just to speak to general reliability, a properly set up HPA RIF will be more "reliable" than an AEG simply due to needing less maintenance (you really only have the seal to maintain occasionally), however a correctly set up AEG (SSG, DSG, DMR...) should only need gearbox maintenance maybe every 100K cycles, or even more. I try to do maintenance on my rifleman style builds around every 200K rounds, and stock guns are simply run until they break, which for some might mean something like 500K cycles. Heck, some TMs are known to last past 1 million cycles with no work done on them.

I'm not sure whether this is a blessing or a curse... ...If we call them disabled here in Texas it usually means they're incapable of using social media. IMO, if you can post about it on social media, you're fully responsible for your actions.

It's a tough situation to be sure, but I think the best answer is to give him a 100% shadow as Tackle suggests. When the shadow is hit, he has to be out as well, and if he's hit, the shadow is out. I can only imagine how quickly it could go wrong without the ability to communicate. A number of folks at my local site bring along their kids between the ages of 6 and 10, and this is probably a similar situation due to the communication difficulties. Basically, I think you'd need someone to take responsibility for him at all times. The additional difficulty is, of course, your own limited sign language vocabulary, which would likely need to be rectified with written site rules and explanations. It's hard, but I wish you good luck! I think almost everyone should be able to enjoy airsoft safely, and this is a barrier that can be overcome.

If available... Arcturus ME models would be my top pick for affordability, utility, and performance. Availability over there in the UK might be an issue. Second to that would be a G&G somewhere in the midrange. They just work and probably won't break the bank. IMO, Krytacs are very good, but they're simply expensive for what you're getting. Slick factor? Yes. Price vs. performance ratio? No. Reliability? Pretty good. The other issue I'll bring up is that they tend to have overspin at UK power limits (they're really designed to work with an M120 for USA power limits).

Stay away from those unanswerable questions, my friend. There lies the way of madness. 😉

Very simply, this is an extremely common issue. Airsoft is rife with underpowered batteries being marketed as proper, weak ferrite motors in stock guns, and people who don't know what they're doing working on gearboxes that are badly designed and relatively complicated. Actually, I should say, the original design is genius but has been cloned, iterated, and become so outdated that it appears badly designed. In addition, there's no other plausible alternative (to my understanding). Here's what we know: Gearbox locks after a few shots, doesn't unlock. The fact that this happens after a few shots means the piston isn't "too long" (or it could never cycle in the first place) There's an aftermarket aluminum piston, which is a 17 tooth piston (I'm assuming this is an SR-25 or other 17T gearbox, though the OP's pics don't show the whole thing). If the piston were sticking, we should see obvious scraping from the successful cycles, which we do not... Additionally, if the piston really were binding, the gears would simply free spin instead of causing a gearbox lockup. This is the easiest way to tell the difference: pull the trigger. In conclusion: Is it somehow possible that the piston, spring, gearbox rails, or spring guide are binding and causing issues? Yes... but how likely is that with no indicators? Standard gearbox lockup is by far the simplest, most common, and most reasonable explanation. I see it constantly with people who don't know how to work on their guns, and who don't understand even vaguely how the batteries they use work. (Heck, I was one of those people once upon a time)

Absolutely not. What you need to do first is get a good LiPo battery. This lockup is occurring because your battery/motor don't have enough juice to complete the cycle, and thus the gearbox locks. What battery are you currently using?