SixtyNiner Posted March 26, 2014 Report Share Posted March 26, 2014 If it's anything like the Magpul UBR stock then the castle nut isn't needed. As you tighten the stock to the buffer tube a 'lug' slots into the small circular cutout in the receiver, just below where the buffer tube meets the receiver. Normally this is covered by the receiver end plate. Once fully tightened the lug prevents the buffer tube and stock from rotating and keeps it locked in solid. Quote Link to post Share on other sites
SixtyNiner Posted March 26, 2014 Report Share Posted March 26, 2014 Here's a picture of the UBR 'lug'… And while I'm at it, here's my UBR conversion to fit a SOPMOD with a battery in the stock. I was planning to write up a 'how to' but I don't think I'll get time until my kids have grown up and left home. Since taking the photo I've managed to make enough space for a PEQ-15 type lipo inside, although you have to removed the rubber butt plate to slide it in. The largest mah battery I've gotten through the side door is this 7.4v 850mah lipo… http://www.hobbyking.com/hobbyking/store/__11898__Turnigy_nano_tech_850mah_2S_25_40C_Lipo_Pack.html 3 Quote Link to post Share on other sites
Hatchet Posted March 26, 2014 Report Share Posted March 26, 2014 Hmmm. Might have to look at SPRing it then... Quote Link to post Share on other sites
PureSilver Posted March 26, 2014 Report Share Posted March 26, 2014 (edited) Ah, thanks for the answer. I was actually thinking about the complete set with the improved recoil weight, but I'm not sure if thats a big difference anyways, I already got the stronger recoil spring from Eagle6. I also have the First Factory castle nut, so maybe I will go for the buffer tube alone, as mine is already a little worn and crooked. It's a pretty big difference in 'recoil'. You simply cannot get the SURUS any more, not for love nor money - I should know, I tried - but I can put you on to a machinist who made improved examples for myself and Zereck, another user on here. They're of a similar design to the SURUS but are more flexible in that they can be installed as suspended units (like the SURUS) for an improved kick or fixed (like the original weight) for an even harder kick. Drop me a PM if you want his details. Is the method of attachment not a bit different at the receiver end though? Castle nut doesn't seem to be present on the full stock, it's all part of the buffer tube assembly. Or at least that's how it seems from the pictures. Yep, the A1, A2 and some other fixed stocks don't use castle nuts to secure the buffer tube, which in the RS examples is tightened into the receiver with a wrench. As you can imagine, that wouldn't work so well on the soft alloys involved in the Recoil Shock range, particularly because carbine-length buffer tubes don't have the ring (present at the end of the buffer tube's threads) that A1/A2 buffer tubes do, which is what the threading is tight against. Instead, I think the preferred method for Recoil Shocks is to Dremel the inside of the fixed stock until it fits over the castle nut, although I could be wrong. Edited March 26, 2014 by PureSilver Quote Link to post Share on other sites
Richard Y Posted March 27, 2014 Report Share Posted March 27, 2014 You can dremel over the castle making it thinner but but tbh if I did it again I would just remove the caste nut .. The stock will hold the tube against the gun. So it doesn't wind out. Quote Link to post Share on other sites
Hatchet Posted March 27, 2014 Report Share Posted March 27, 2014 PTW stocks are meant to be close to RS dimensions aren't they? It'd be nice to pick up something that's not cheap rattly plastic... Quote Link to post Share on other sites
PureSilver Posted March 27, 2014 Report Share Posted March 27, 2014 Get the real thing, they're pretty cheap, or a GBB-specification G&P or something similar. Quote Link to post Share on other sites
Hopewell Posted March 27, 2014 Report Share Posted March 27, 2014 On a slight tangent, has anyone heard anything more on the BTC Spectre? I have checked ASM and tried a google search to no avail! Quote Link to post Share on other sites
PureSilver Posted March 27, 2014 Report Share Posted March 27, 2014 Er - yes, I have one on its way to me. Another UK user's has already arrived. Quote Link to post Share on other sites
Hopewell Posted March 27, 2014 Report Share Posted March 27, 2014 ...did I miss the release? Quote Link to post Share on other sites
PureSilver Posted March 27, 2014 Report Share Posted March 27, 2014 No - they're on a very limited pre-production basis (I think there are twenty worldwide?) so there just aren't enough to put on sale at the moment. When there's more to sell they'll go on full-scale release, I'm sure. Quote Link to post Share on other sites
Hopewell Posted March 27, 2014 Report Share Posted March 27, 2014 Thats alright then, you scared the hell out of me! I have decided that I am going to try get one of these when they release, so I guess pre-production models will ease any early bugs! Quote Link to post Share on other sites
blobface Posted March 27, 2014 Report Share Posted March 27, 2014 PTW stocks are meant to be close to RS dimensions aren't they? It'd be nice to pick up something that's not cheap rattly plastic... I think some genius at Systema thought it'd be a good idea to copy the dimension of a real steel commercial tube size instead of milspec.. I can confirm that both the non-PTS MOE and CTR stock fit the SOPMOD stock with no modification required (provided you've sorted the wiring) Quote Link to post Share on other sites
Hatchet Posted March 27, 2014 Report Share Posted March 27, 2014 Get the real thing, they're pretty cheap, or a GBB-specification G&P or something similar. I'll take a look. Usually it's the getting people to ship them that's the pain, but it's not insurmountable. Quote Link to post Share on other sites
Richard Y Posted March 28, 2014 Report Share Posted March 28, 2014 Yeah ive got a pre production on the way hopefully. Looking forward to testing it out, i will report back any issues. Its rear wired so i will get a sopmod in and see how much needs to be done from out of box to get it in a normal bog standard sopmod. Quote Link to post Share on other sites
blobface Posted March 30, 2014 Report Share Posted March 30, 2014 (edited) Sorry for taking so long to install it after getting the Spectre for next-gen v2, but here it is! http://arniesairsoft.co.uk/forums/index.php?/topic/212612-btc-spectre-fet-for-next-gen-v2-gearbox-initial-impression/ Edited March 30, 2014 by blobface Quote Link to post Share on other sites
Hopewell Posted March 30, 2014 Report Share Posted March 30, 2014 Sold! Cheers for the info, I am definitely a fan of this. I am even considering taking out the quick change system in my TM, selling it and wiring direct to deans.. I knew the quick change system added resistance, but not to this extent. Quote Link to post Share on other sites
Richard Y Posted March 31, 2014 Report Share Posted March 31, 2014 (edited) The gold contact bar conversion kit should be looked at .. It comes with a handy block which you can screw in place after the quick change has been removed. Then your bars won't slide out after the quick change connections on the stock have been removed. Edited March 31, 2014 by Richard Y 1 Quote Link to post Share on other sites
Lord Vader Posted March 31, 2014 Report Share Posted March 31, 2014 @PureSilver: Thanks for the info, I will keep that in mind if I go through with the complete upgrade. Now with the Spectre in mind I'm thinking about rewiring my Socom to the back. What would the biggest 11.1 V LiPo that can be fitted in the Sopmod stock? Is it possible to use both sides of the stock or won't there be enough room for the cables then? Currently I'm running a 11.1 V 1200 mAh tri-panel in the RIS (semi only), but I feel it doesn't last very long with my M120 and upgraded recoil spring. At least the response time drops noticeably in a rather short time. Quote Link to post Share on other sites
Richard Y Posted April 1, 2014 Report Share Posted April 1, 2014 If you get the spectre over all efficiency will go up, you will be able to get a lot more for a lot less battery. You can fit a 7.4v 2000mah turnigy in there if your willing to lengthen the wire that joins the two cells. Also 11.1v 1400mah li ion packs round cells Quote Link to post Share on other sites
Hatchet Posted April 1, 2014 Report Share Posted April 1, 2014 CNC end cap turned up in a couple of days from Echigoya. Good service. Got a fixed stock on the way. We shall see how well it all goes together. Now all I need is the NG-spectre on general release. And possibly an entire SPR front end. and... well, you know how it goes... 1 Quote Link to post Share on other sites
PureSilver Posted April 1, 2014 Report Share Posted April 1, 2014 Mk.12 Mod.0, I hope... Quote Link to post Share on other sites
Hatchet Posted April 1, 2014 Report Share Posted April 1, 2014 It'd be rude not to. Although the PRI front end is something crazy like £180... Quote Link to post Share on other sites
blam360 Posted April 1, 2014 Report Share Posted April 1, 2014 wondering if people have run into any issues running the gun stock on using a 7.4v lipo but without the fuse? my common sense says it should be fine.. Quote Link to post Share on other sites
blobface Posted April 1, 2014 Report Share Posted April 1, 2014 wondering if people have run into any issues running the gun stock on using a 7.4v lipo but without the fuse? my common sense says it should be fine.. I pretty much did that for 4 years, didn't have any problems, I would have put one in if I had the space but I didn't, and the gun's gone through quite an amount of abuse too. 1 Quote Link to post Share on other sites
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.