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Nice bunch of parts there! Looks like a sweet build, shame about the buffer tube though. Hope you manage to get it sorted out somehow.
Where do you source your parts from?
Btw do anyone here know if RS Selector Switch, bolt catch, Takedown pins and trigger guard will fit the MWS? Guessing a no on the selector switch and bolt catch at least. Would love to have this on my MWS
https://www.strikeindustries.com/shop/products/ar/lower-parts-kit/strike-switch.html
The selector and bolt catch will not fit. Me trying to fit the selector was what broke my detent pin, as I forcefully had to hammer it out?. The takedown pins I have do fit and the trigger guard had to be atleast filed down to fit.
EDIT: The takedown pins I have are part of the lower receiver parts set (https://www.strikeindustries.com/shop/products/ar/lower-parts-kit/ar-enhanced-lower-receiver-parts-with-trigger-hammer-and-disconnector.html).
Most of it doesn't fit though so pretty useless purchase. The magazine release can also be made to work with some filing down but I chose to use the SI button with the original lever, works perfect!
View attachment 45344
View attachment 45345
@Fissure Probably easier to sum it up from the parts I have purchased:
Strike Industries:
Trigger guard / SI Fang: Can be made to fit, although I haven't started with that yet. Probably can force it to fit aswell but after what happened with the safetely selector, I'm a bit more careful.
Takedown Pins: Do fit without modification, must use the original SI detentpins though.
Buffertube: Is milspec and does not fit, either the buffertube or the upper must be re-threaded.
Flash hider: Real steel threads, advice is to get a outerbarrel extension to get that re-threaded so you do not lose your 14mm ccw on your original outer barrel.
Foregrip: Milspec m-lok, fits the SI rail obviously and will fit any rail aslong as the m-lok uses the proper dimensions.
Rail / barrelnut: The rail itself lines up with the upper perfectly, the upper needs re-threading for the barrelnut though.
Safety selector: Does not fit, also do not attempt to fit it. You will need to hammer it out as it will lock itself in there. So far I have only damaged the detent pin but my trigger was sligthly bent aswell (managed to restore that no problem though).
Stock: Fits perfectly on the SI advanced buffertube, I just returned it because my frame (as in my body) is too big for such a small (it's really small) stock.
Anti-walk/rotation pins: Will not fit as the pins in the MWS are fake.
Multifunction endplate and anti rotation castle nut: Fit a milspec buffertube, see the buffertube.
Ultimate Dust Cover: The dust cover itself fits, but cannot close due to the ejection port on the MWS being too small, can't really be modded. Aslong as you leave it open it's not a problem (unless you think otherwise).
Magazine release: The mag release button fits on the MWS lever, which is what I'd suggest doing. The SI lever has to be filed down too much to be reliable in the longer term, wouldn't surprise it would break sooner or later after filing it down.
Bolt catch: Will not fit and can't really be made to fit as the MWS has a proprietary system which simply doesn't work with a real steel one.
*EDIT* Forward assist: Must be filed down to fit, will lose the MWS' original option of it actually functioning though. * EDIT*
MagPul:
Pistolgrip / MIAD 1.1: Fits like a glove, must use the original MWS screw though.
MFT:
Stock: Fits perfectly on the MWS original buffertube, very slight movement on the SI advanced buffertube.
Think that sums everything up. All in all, to fit real steel you'd probably be better off with a GHK or WE ?.
@Fissure Bringing my upper, outer barrel extension and buffer tube to a gun shop near me, they can re-thread anything basically, at a hefty price I must say. It will be approximately 90 euro's per item to be re-threaded, so 270 euro's (which would be around 230-240 pounds).
Could probably get it done cheaper at a metalworking shop but here in the Netherlands if they see anything resembling something of pure evil like a RIF, they will probably call the cops without question's asked. So yeah, my MWS will be a really expensive plinker ?.
Sorry to hear that real steel handguard does not fit. Especially because just before I read it I ordered one! I am not very happy about the idea of rethreading my upper:-/. Does anyone else have the same problem - not possible to mount a real steel handguard without rethreading?
I got around it with my HERA conversion by cutting the RS barrel mount in half, and threading in on about three turns.
Handguard fitted perfectly, very solid, looked perfect
View attachment 45427
So is the thread size correct but to short or what? Don't understand how you mounted it if the threads are off or did you just force it on?