onizuka-gto Posted January 31, 2014 Report Share Posted January 31, 2014 (edited) Ah, yeah. That happened to me first time I did it. Guess it means not cocked when you put it in, Do apologise it was a couple of months ago and my memory is hazy! As for releasing the hammer I can't precisely remember how I did it, but I vaguely remember pushing something in the trigger block to release the hammer, because that is the thing that operates the safety or the thing that stops you from double cooking the trigger. Edit: also explains why it's under tension when you put it in, it has to catch and push against the hammer, which tell you it's correctly in. Edited January 31, 2014 by onizuka-gto Quote Link to post Share on other sites
FTZ-WildeCard Posted February 1, 2014 Report Share Posted February 1, 2014 Still no luck getting it to release the hammer. :/ Quote Link to post Share on other sites
steelfallenangel Posted February 1, 2014 Report Share Posted February 1, 2014 Guys I was more refering to TM OEM replacement parts and not nessecarly upgrade parts. Are these available or are even they hard to come by? Quote Link to post Share on other sites
Wingmann Posted February 1, 2014 Report Share Posted February 1, 2014 Send an e-mail to the guys at echigoya-guns and see what they can do. Quote Link to post Share on other sites
mimesis Posted February 1, 2014 Report Share Posted February 1, 2014 Guys I was more refering to TM OEM replacement parts and not nessecarly upgrade parts. Are these available or are even they hard to come by? Tokyo Model Company have more TM parts than the average store. They might be able to help. If not, Pulse (Japan) can very likely help... for a price. Quote Link to post Share on other sites
onizuka-gto Posted February 2, 2014 Report Share Posted February 2, 2014 Still no luck getting it to release the hammer. :/ Now i feel bad for not really remembering how to do it properly and yet gave you advice. I'm sorry. So i took apart my m870 and had a look and here is what i did to get the foregrip to slide forward again. Now to get your trigger block into the correct location, you have to make sure that no.1 catches on no.2, remember this, because when you get it correct in, this will stop your trigger block from falling out. The mechanism that is preventing you to push your foregrip forward is located on the left arm, no.3. Now you can use a small flat screw driver to flip it down, but the easiest method i found is simply lifting the right arm up then push your foregrip, if it doesn't budge, go to the no.04 left arm and lift it up. Just be aware you will have to lift this arm again when you cock it again as this will preent you from doing so. Now that you you have done it, you have to now cock your shotty again, but this time you must cock it all the way back until it clicks, hold it and now fit in your trigger block. now push the foregrip forward to complete the action. Now just give it a go and fire the trigger. Sometimes if you don't hold the trigger block tight enough, the trigger will fire itself, thats fine, just cycle again just to make sure you can do it again. Once you know whats going on, just reassemble the rest of it, just to be though i'll just walk you though how i did it. i first fitted the receiver body over the internal, making sure i have my fake dust cover in place and the tiny sliver spring piece is in the metal guide. I then slide the cover half way, just up to the dust cover. Now i fit in the spring into the silver metal part then carefully slide the cover further forward before stopping just near the end to fit in the fake dusk cover spring before sliding it fully on. Now i will cock the shotgun fully until it click, fit in the tigger block then push the foregrip forward, before i put the last body pins, i fire the trigger and cycle it again just to make sure. Then im done. I hope this helps Wildecard. 1 Quote Link to post Share on other sites
FTZ-WildeCard Posted February 2, 2014 Report Share Posted February 2, 2014 Hey Onizuka, Thanks to your tutorial I've got my M870 working again! I even managed to align the shell carrier correctly with the pins sitting flush. Thank you once again for your help, I really appreciate it! 1 Quote Link to post Share on other sites
GSO-Geko Posted February 2, 2014 Report Share Posted February 2, 2014 Reassembly Video. I'll re-film it this week with a better light, but hopefully this helps anyone who needs it in the interim. 2 Quote Link to post Share on other sites
blobface Posted February 7, 2014 Report Share Posted February 7, 2014 For the 2 people who care (probably very little as well), Wii-tech HK has produced a tube extension that is more accurate to the Remington Express Tactical version than any other brand so far (but not perfect). Wii-Tech: The screw cap is wrong, where as the G&P version's screw cap is closer to correct in that the knurling are strips as oppose to diamonds as seen in this version. G&P: Real one seen below: So far I've got the Remington express tactical tube clamp, the screw (I had to buy the screw from else where, dafuq?), the breacher choke, the wii-tech extension which is on its way, and I already have the G&P one which I'll take the cap from). I apologies for everyone else other than the 2 people who are mildly interested in the above. 1 Quote Link to post Share on other sites
Brigg Posted February 7, 2014 Report Share Posted February 7, 2014 Just out of curiosity, why would anyone want to dress up their gun as an M870 Express? Thats like, the cheap version of the 870 that you buy at Walmart. Why not a Wingmaster or one of the other nice ones? (Marine Magnum, anyone?) Quote Link to post Share on other sites
blobface Posted February 7, 2014 Report Share Posted February 7, 2014 (edited) Just out of curiosity, why would anyone want to dress up their gun as an M870 Express? Thats like, the cheap version of the 870 that you buy at Walmart. Why not a Wingmaster or one of the other nice ones? (Marine Magnum, anyone?) Because living in a country with no Walmart or Walmart shotguns... I don't know the hierarchy of the Remington 870 models in the coolness scale amongst civilians... I just liked the look of it so I decided to build it as such... http://www.remington.com/products/firearms/shotguns/model-870/model-870-express-tactical.aspx *also because the TM 870 already has the same rail and ghost sight as the express tactical.. Man, your comment has saddened me, I'll go cry now. Edited February 7, 2014 by blobface 1 Quote Link to post Share on other sites
GSO-Geko Posted February 7, 2014 Report Share Posted February 7, 2014 I tactical'd all over my shotgun. Sorry everyone. 1 Quote Link to post Share on other sites
BerserkDS Posted February 9, 2014 Report Share Posted February 9, 2014 Anyone know what needs to be done in the trigger group to install the M870 hard lock frame pins? I cant read the japanese text... Quote Link to post Share on other sites
BerserkDS Posted February 9, 2014 Report Share Posted February 9, 2014 nevermind, I figured it out Quote Link to post Share on other sites
onizuka-gto Posted February 9, 2014 Report Share Posted February 9, 2014 (edited) pardon? sorry Berserk, i'm not really sure what you are trying to do? can you elaborate? Edit: ha! that was quick! What did i say? Japanese? EASY. Edited February 9, 2014 by onizuka-gto Quote Link to post Share on other sites
BerserkDS Posted February 10, 2014 Report Share Posted February 10, 2014 Hah..I used a Google translate app on my phone, and translated the directions by taking a photo of it! But basically in the trigger group there is a screw that you can add shims to, to prevent trigger group wobble. Awesome feature, as my stoch setup would always have play side to side Quote Link to post Share on other sites
FTZ-WildeCard Posted February 10, 2014 Report Share Posted February 10, 2014 OK I did not know that! Thank you! Quote Link to post Share on other sites
blobface Posted February 11, 2014 Report Share Posted February 11, 2014 Wallmart shotgun complete! 1 Quote Link to post Share on other sites
Atsalakotos Posted February 12, 2014 Report Share Posted February 12, 2014 Hey guys, I have been wondering what shell side saddle to get for this... I know the marui shells are fatter than the real 12 gauge ones but by how much? Can i just get a polymer side saddle and sand the insides for the shells to fit? Also are the receiver pins in the same place as the real one, or are they off spec? (I remember the receiver being a bit shorter than the RS but all i care is the pin position so I can mount the shell saddle) 1 Quote Link to post Share on other sites
blobface Posted February 12, 2014 Report Share Posted February 12, 2014 Thanks to Brigg, I'm now considering in sending the whole thing off to be electroless nickel plated, I mean, that tube clamp and the "correct" Remington extension is the same one for the Marine Magnum too... Atsalakotos: the shells are quite a bit bigger, over 2mm, it'd be a nightmare to file it to fit, but quite a few airsoft brands are now making the saddles. Not sure about the pin position though, I can check tonight as I have the Tanaka 870 as well which is real spec. 1 Quote Link to post Share on other sites
GSO-Geko Posted February 12, 2014 Report Share Posted February 12, 2014 Bought a cheap side saddle for this. Pins lined up nicely, and were even the same size, so they're to real specs. The polymer side saddles that pinch work OK, but are still very tight. Any metal side saddle is a no go. You should probably just wait for the angry gun one to come out. Quote Link to post Share on other sites
Danke Posted February 12, 2014 Report Share Posted February 12, 2014 They're nice and snug in the cloth ones. Quote Link to post Share on other sites
Atsalakotos Posted February 13, 2014 Report Share Posted February 13, 2014 Okay, thanks for the answers guys... Maybe i will just wait for the angrygun saddle.. In other news, i took it apart to install the G&P RAS forend but now it won't feed BBs and i am pretty sure everything is in place. (Also looking down on the feed port i don't see anything broken / out of place) Anyone had the same issue? Any ideas what could be causing the problem? Quote Link to post Share on other sites
Norotor Posted February 14, 2014 Report Share Posted February 14, 2014 Well I finally ordered one from echigoya, I hope the problems are fixed with this production run. I'll be putting a pistol grip on it and tapping it for HPA when it gets here. Quote Link to post Share on other sites
CALLAHAN_88 Posted February 16, 2014 Report Share Posted February 16, 2014 Whats the weak point on the M870? Quote Link to post Share on other sites
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