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mjsemtex

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About mjsemtex

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  1. mjsemtex

    IRA-10D buffer damage.

    all parts (the barrel, bolt, bolt carrier, etc.) have since been installed on another upper with no problems. this was also done during the time i was trying to diagnose the issue at hand using a factory DPMS upper and there were no problems. there have been other users with the same issue who were happy to band-aid the issue with buffer pads and anti-tilt buffers.
  2. mjsemtex

    IRA-10D buffer damage.

    as i'd purchased the complete lower well before the upper was available from iron ridge, i'd used the lower with a factory DPMS upper (at least 120 rounds fired) and experienced no unusual wear. using the iron ridge upper, there was an obvious gap between the rear of the bolt carrier and the buffer when the upper and lower were mated together and closed. while the buffer retainer would normally not fall under pressure (other than when the upper and lower are opened up) it was taking the brunt of the force as the buffer moved forward when the weapon cycled. i'm more than happy to never deal with the company again after the experiences i've had with them.
  3. mjsemtex

    SI Defense Stainless Bolt Catch Screw

    so, this is the same threads / dimensions as the DPMS bolt catch screw? but, not prone to disintegration.
  4. mjsemtex

    IRA-10D buffer damage.

    thankfully, the refund showed up this week.
  5. mjsemtex

    IRA-10D buffer damage.

    neither is the fact that i'm still waiting for the refund.
  6. mjsemtex

    IRA-10D buffer damage.

    i agree completely. and, if offered a refund, i'd assume it would be an immediate solution. i'm still waiting with no definite answer.
  7. mjsemtex

    IRA-10D buffer damage.

    iron ridge has had the rifle / parts since early december and had said that they were going to replace the upper with their 'gen 2'... but, had also said that this wouldn't solve the way it was banging up the buffer as that was 'normal' in all AR rifles. as i was unhappy with this response, they've offered to refund my purchases from them. which i accepted. now, i'm waiting on the refund... i'd have thought it would be immediate which is not the case.
  8. mjsemtex

    IRA-10D buffer damage.

    waiting on the completion of IRA's GEN 2 upper...
  9. mjsemtex

    IRA-10D buffer damage.

    currently on its way back to iron ridge.
  10. mjsemtex

    IRA-10D buffer damage.

    that's definitely something i can compare when i'm home later this afternoon. wouldn't the 'stronger' spring cause even more damage to the buffer as it seems to slam into the retainer pin? some of my concern also lies in the fact that the BCG isn't flush with the back of the upper as it is in all of my AR-15s... it would seem that instead of the buffer slamming home against the carrier group, the retainer is taking the brunt of the force. when i close the upper down onto the lower, there does seem to be a gap between the buffer and the rear of the BCG.
  11. mjsemtex

    IRA-10D buffer damage.

    so, i've not only been supplied with the wrong buffer spring when i originally purchased the complete lower from iron ridge but, i've also been sold the wrong buffer spring from midwayusa when i ordered the replacement.
  12. mjsemtex

    IRA-10D buffer damage.

    the bolt carrier isn't showing wear... just the marks around the edges of the buffer so far.
  13. mjsemtex

    IRA-10D buffer damage.

    trying to get some input on this... having problems with wear on the buffer in my IRA-10D. i'm using iron ridge upper and lower receivers, a fulton armory BCG. i had originally posted some pics over on sniper's hide. http://www.snipershide.com/forum/ubbthreads.php?ubb=showflat&Number=2071770 i've recently found that the bolt carrier group doesn't seem to sit flush with the rear of the upper receiver, possibly the root of the problem i'm having with the excessive damage to the edge of the buffer. any input?
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