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Thread: a stronger AR-bolt-is it possible?

  1. #31
    GuncoHolic BBill's Avatar
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    Quote Originally Posted by moleman View Post
    BBill, Did you get one of the standard pattern "super bolts" or the newer style with the rounded lugs that comes with a barrel extension?
    Just the standard- I talked to him after I ordered it and he machines all his stuff in-house. When I was waiting for my stuff he told me he was waiting on metal. Got the slightly longer firing pin for commie ammo. I've got a couple of 7.62 ARs and really all I had to do was bug J4 a little bit and open up the gas port hole a little and they both scream! I kinda like talking to the guy who actually makes the parts.

  2. #32
    Gunco Addicted for life j427x's Avatar
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    Quote Originally Posted by BBill View Post
    Just the standard- I talked to him after I ordered it and he machines all his stuff in-house. When I was waiting for my stuff he told me he was waiting on metal. Got the slightly longer firing pin for commie ammo. I've got a couple of 7.62 ARs and really all I had to do was bug J4 a little bit and open up the gas port hole a little and they both scream! I kinda like talking to the guy who actually makes the parts.

    i think i am going to get one of his bolts and cam pins--

    yea there expensive. but a regular DPMS 7.62x39 bolt is $60 retail and a 5.45x39 is $70 so were talking only about $30ish more.

    let us know if the bolts have a nitrited finish on them when that one comes in--bill!

  3. #33
    gunco irregular moleman's Avatar
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    Thanks BBill, I sent them a email as the 6mmbr super bolt and extension with the round lugs has disappeared from their website since sunday. I hope they're just out at the moment.

  4. #34
    GuncoHolic BBill's Avatar
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    Quote Originally Posted by j427x View Post
    i think i am going to get one of his bolts and cam pins--

    yea there expensive. but a regular DPMS 7.62x39 bolt is $60 retail and a 5.45x39 is $70 so were talking only about $30ish more.

    let us know if the bolts have a nitrited finish on them when that one comes in--bill!
    Mine was nitrited and the stake job was the best I've ever seen- I'd hate like hell to have to loosen those allen bolts!

  5. #35
    Gunco Member LA_357SIG's Avatar
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    I had an second run ARP bolt in 6.8 years ago. It is thicker compared to the Busmaster (CMT?) bolt that came with the rifle. I didn't shoot it much with the ARP bolt and I wasn't too impressed with it because it used a 5.56 extractor and a modified extractor spring. I didn't have any failures wiyh it on an intermediate gas system Bison Armory barrel. Although I didn't have any failures with the 1st run Bushmaster 6.8 carbine it was originally purchased as.

    Anyway fast forward to 2011. I built a 7.62x39 AR15 upper with an Osprey Defense piston kit. The Bolt is from SI Defense and supposedly MPI, carpenter steel and the whole milspec deal. I also run an AA bolt spring and POF roller cam pin on the OPS one piece bolt carrier. I hand cycled it dry for a long time while locating other patrs needed (including the POF cam pin and bolt spring) and had some where on the back of the lugs and cam pin hole. I never shot it DI but soon after installing everything it hand cycled much smoother and as far as I can tell no more wear (parkerizing rubbing off) on the bolt when lubed and fired.

    If I was going to entertain the thought of this carbine as being a serious fighting one I would probably get the ARP bolt for piece of mind. But as a range toy and occasional deer rifle the SID bolt is good enough. I am just shooting steel cased Wolf through it and passing a bore snake through every 100 rounds until it jams. So far the bolt seems to be holding up and no signs of hard extraction.

    YMMV

  6. #36
    gunco irregular moleman's Avatar
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    Well, for what it's worth. I have sent several emails to AR15 Performance over the last month+ without any response asking if they are still making the 6MMBR Bolt & Extension since it is no longer shown on their web site. Since the project is basically stopped without that bolt and barrel extension I'll most lilkely go another direction.

  7. #37
    Gunco Addicted for life j427x's Avatar
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    i think were going to see a lot of the makers of one-off stuff for AR-15 type rifles start dropping off the map due to the poor economy and slow sales.

    hell i found a place that will make barrels to order but the prices on ammo make if difficult to run off a batch of 6.5g type barrels. that other ar place is sitting on a stack of 6.8s and their moving very slow i have been told.

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