SSPKali

Another snippet of info that might be useful; TM 250mm barrel > CrazyJet 250mm barrel gains you about 10-15fps. Now back to your scheduled program…

My daughter is still a bit young (7) but has shot my GBBR at targets in the back garden. She played her first LaserTag at the weekend at a friends party. She racked up 20 kills in a short game and was mainly annoyed that once the whistle sounded the rest of her team ran off like headless chickens 🤣

Some good stats there! Nice to see a scientific approach. The spread of FPS seems pretty usual, Joule output seems reasonable. Heavier ammo will give a tiny rise in Joules (due to joule creep) but in pistol length barrels it is negligible. Heavier ammo will, in theory, wear hop rubbers faster but probably not noticeable unless you fire THOUSANDS of rounds each weekend! I would be interested to see grouping sizes at 10m and 20m for the pistols, not really useful at ranges over that, that is what the rifle is for. I would decide what you want from your pistol (CQB at sub-10m? Out door secondary out to 20m? Sniper back up that has to reach to MED?) Then test at that range with different BBs and see what the grouping is.

Couple of things to check: If you have done the “green gas mod” to the mags, check that you are not over filling the mag with liquid gas. Are the mags filling correctly? I tend to fill mine in 1-2s blasts, leave it to warm up, then do again. A 8-10s fill (in stages) is plenty for 100+ shots. Is there an air lock in the mag? Give it a blast of gas while holding the release valve open, then try filling in stages again. let us know how you get on

If only because all airsofters want to Seal-Delta-commando-tier1 heroes (because they can never be the “bad guys”!)

As a GBBR user that sounds fine to me 😀 Carrying 7x 35rd mags is a killer workout! One gun that is always fun is a little AK, the Cyma CM045 (AKS-74U) is a cracking gun for the money and mags and chicom chest rig are cheap and very different to an M4. Sometimes fun to play “the bad guy” Also the v3 gear boxes are easier to work on if you want to start tinkering…

Low tech solution here - dual pane glasses from Pyramex I-force slim. Using them with FogStop they were perfect EXCEPT when you pelt it to the 4th floor of C wing and then stand in the corridor defending “Dave” (UCAP VENDATTA players will know!) when I started to fog up in the left lens only (my shooting eye and the only one I wear a contact lens in…weird!) I then took a dremel to the outer gasket frame part (having removed it from the main glasses body) and opened up the scalloped areas to allow more air flow. Still can’t fit a BB through the gap and none should be coming directly UP or DOWN anyway! Result is now that I do get a tiny strip of fog at the top of the lens, probably because the baseball cap slows the airflow but the main part of the lens stays clear. Pics below show one side modified vs the standard vent size

Any standard AEG hop rubber should do. Maple Leaf are highly rated, and I have had good results with G&G green and TM black. Have a look on AK2M4.co.uk

Yep, here it is Grab a beverage and settle down for a long read!

There was a spreadsheet produced by someone on here that allowed you to plug in the numbers and it would give an estimate of the range attainable, it even took into account hop up (Magnus effect) It might have been @Adolfhamster? Heavier BBs carry their energy further and have a more pronounced hopup effect, with no increase in drag caused by air friction. I can see what some angry airsoft techs are saying that some builds work better with, say, 0.28g vs 0.36g ammo. Best bet is to get samples of ammo and give it a test! I will try and have a search for the thread later once tea is cooked and small person put to bed

The number 2 is engraved underneath the bottom plate….watch out for the mag spring when you take it off! The Gen2 mags seem to give better gas efficiency with out the need to trim the fill tube. Nothing to do with gas retention.

Best bet is to load the Python module on the Arduino as it is much easier to learn than C. Then get yourself the “Automate the boring stuff with Python” book and online course. I have developed a basic airsoft target game with a mini Arduino runninf C (with help from a friend who is a software dev) - those are two weeks of my life I am never getting back!

I have the Olight Valkyrie as a main weapons light (and the smaller 1 CR123 for the pistol) and while it is a great bit of kit and very bright it can be too bright and the reflected light from use in small, painted rooms dazzle the user! I have a scope flip-up cap (with the cap and spring / hinge wings cut off) holding a 2mm thick red tinted lexan over the lens - this moderates the output and preserves *some* of my vision! Easy to pull the cover off and dazzle the opposition if needed (say, outside or in larger spaces)

G&P reborn....again! Carry handle and classic fore end with BHD-type camp paint done in a hurry. Will be my go-to for woodland games (GBBR is NOT ideal when you need to put down lots of covering fire!) Now I need to find some metal STANAG mags in stock somewhere so I can paint to match!

As someone who tried to get them to come and certify a world record I can confirm this is not the case, they generally tell you that yours is too silly (really?! Have you seen some of the stuff they certify?) and then threaten legal action if you call it a "world record" with out them verifying it (even if you never mention the G word) Last email to them was pretty much summed up as "Go away in small, jerky movements'

Maybe use some PTFE spray (GT85 or similar) to make sure the weighted head and striker pin are moving freely as any friction will reduce the impact on the primer. I have an old AlphaTec and it just keeps running with zero maintenance...not even sure what you can do to them?!

I am using Magpulls on my M4 mags but also plan to try stuffing a chunk of pipe lagging in the bottom to raise them up a bit (also allows me to place empty mags “feed lips up” so I don’t grab them by mistake!)

If the mag corner is bent FFS don’t try and bend it back! I guarantee it will fracture 😢 Use a small file and file it flat a little at a time.

This thread gave me the kick I needed to get an SADF M83 chest rig. Probably one of the best purchases I have made! Can take M4 or AK74 mags easily, side pockets fit my timed and impact BFGs and the skinny pen pocket takes the reloading tool. Throw a tin of primers in the tiny pocket and I am set! Even with 6 (!) TM M4 gas mags and 2 BFGs it is comfortable with no hot-spots on the straps. My Viper Spiritus clone is ok with 3 mags in but add any more and after a while it starts to kill my shoulders. I will be keeping that for CQB and short games; for woodland / OPFOR / and long games the M83 will be the go-to 👍 I will be adding some Velcro OneWrap to the strap ends to tidy them up and might add an elastic section to the waist strap (along with cordura “concertina” cover) to allow for pie intake 😂🍔

Check the little catch on the mag is moving smoothly. Press down the bb follower then check that the little catch at the back of the mag moves up and down smoothly. It is easy for dirt to get in there and make it sticky. I have had some that were sluggish due to dirt and another where the corner of the mag was bent inwards half a mm and stopping it moving at all!

For that sort of money just buy a regular MWS, change the stock / rails / grip and get any bits you fancy Cerakoted in a suitable pimpy colour

I have found that the MP5 doesn't need a high mount sight due to the drop on the stock (even with face-pro) unlike the in-line M4 style. Can't imagine using a red dot on a high mount even with my giraffe neck! Also....lovely collection there! GBBs?

I tried one but due to latching and the issues of having controls inside the trigger guard (not a great idea!) I sold mine 😀

So what was it? Just in case someone else runs into the same issue!

I would start with selecting a hand guard and measuring the internal diameter and then working from there as that will dictate the suppressor diameter. You will also need to check the length of the hand guard vs barrel and see what overlap you need.