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Thread: Spectre Ballistics Light Practical Carbine - NR Receiver Set

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    CGN Ultra frequent flyer jiffx2781's Avatar
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    Quote Originally Posted by SpectreBallistics View Post
    The buffer tube attaches to the upper. We opted for this for several reasons, but importantly it saves quite a bit of stock and brings the cost down. This gun is very much nothing like an AR.
    My question is (since there is no picture from the rear of the receiver) Will it be machined in a way that allows a receiver endplate to be installed AND still allow the receiver halves to pivot open?

    Similar to this:

    Attachment 316349

    Attachment 316350

    Attachment 316351

    ^^^ note that the rear of the lower is cut out to accept the endplate and allow it to open/close freely. Elimination of the ability to accept an endplate and only rely on the castle nut to attach the buffer tube will extremely limit sling attachment ability/options.

    Please keep this in mind during the design process.
    Last edited by jiffx2781; 10-24-2019 at 02:10 AM.
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    CGN Ultra frequent flyer jiffx2781's Avatar
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    I should add, I'm interested in one of these, pending final design and pricing. I think it would make a nice foundation for a compact SBR for backpacking or throwing in the tractor cab.

    The positive I see in this compared to the NR semi auto receiver sets is that the only requirement it would have to meet is minimum OAL.

    I in NO way view this as a substitution, or worse, a replacement for my semi auto rifles. That it is being marketed as such due to government fear mongering is appalling to me. They can go pound sand as far as I'm concerned.

    Regardless of my thoughts I do see this as having it's place in the market.
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    CGN Regular jadam's Avatar
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    Quote Originally Posted by XXXXX View Post
    Yep, I understand that principle.

    On an AR, I understand it is the buffer spring which applies continuous forward pressure on the BCG, thereby keeping the lugs engaged and locked.

    My question is what takes place of this system?

    I'll just wait for more details I guess. Either way, I want one
    This is pretty important to consider SBI. If the bolt is not held closed by some means then the design of an AR bolt arrangement will allow for some slop to occur with the bolt carrier (whatever form it may be in). In turn this will mean light primer strikes or out of battery detonations. The Troy PAR has a mechanism for locking the bolt I. Position that is quite clever. Without something similar I think this design is unfinished.

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    Quote Originally Posted by jadam View Post
    This is pretty important to consider SBI. If the bolt is not held closed by some means then the design of an AR bolt arrangement will allow for some slop to occur with the bolt carrier (whatever form it may be in). In turn this will mean light primer strikes or out of battery detonations. The Troy PAR has a mechanism for locking the bolt I. Position that is quite clever. Without something similar I think this design is unfinished.
    From what I can see, this will function like a gas system-less AR. Simple straight pull bolt action. Its suprising to me that the BCG has been changed, I would not have done that if I were SBI.
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    CGN Ultra frequent flyer jiffx2781's Avatar
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    Quote Originally Posted by onetwentyish View Post
    From what I can see, this will function like a gas system-less AR. Simple straight pull bolt action. Its suprising to me that the BCG has been changed, I would not have done that if I were SBI.
    Perhaps they are concerned the RCMP will find a way to determine that it could be easily converted back to semi auto. Really all you'd have to do is drill the hole through the front of the receiver for the gas tube and you'd be back up and running.

    Perhaps a solution would be to machine the channel in the top of the upper not as deep so you could still use standard bcg and buffer spring BUT the gas key would have to be removed in order for it to fit. They would still need to find a simple way of attaching the side charging handle to a standard unmodified bcg which could prove to be a bit of a road block.
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    CGN Regular jadam's Avatar
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    Quote Originally Posted by onetwentyish View Post
    From what I can see, this will function like a gas system-less AR. Simple straight pull bolt action. Its suprising to me that the BCG has been changed, I would not have done that if I were SBI.
    A gas-less AR still has the bolt locked closed by the buffer system. This does not.

    The Troy PAR locks the bolt closed with a cam system acting on the unique bolt carrier. The Troy Side Action Rifle likely uses the same cam and also uses a spring to assist the bolt movement forward.

    Either a locking mechanism or spring pressure system are, in my opinion, a necessity.

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    CGN Regular jadam's Avatar
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    Quote Originally Posted by jiffx2781 View Post
    Perhaps they are concerned the RCMP will find a way to determine that it could be easily converted back to semi auto. Really all you'd have to do is drill the hole through the front of the receiver for the gas tube and you'd be back up and running.

    Perhaps a solution would be to machine the channel in the top of the upper not as deep so you could still use standard bcg and buffer spring BUT the gas key would have to be removed in order for it to fit. They would still need to find a simple way of attaching the side charging handle to a standard unmodified bcg which could prove to be a bit of a road block.
    Not sure why people want to keep the BCG. It’s only needed for an AR. A simpler system can be made by abandoning the legacy part (BCG) and you also add another layer of differentiation from an AR.

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    CGN Ultra frequent flyer jiffx2781's Avatar
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    Quote Originally Posted by jadam View Post
    Not sure why people want to keep the BCG.
    Simple. Parts commonality, availability and serviceability. AR parts are the most common out there and the easiest to obtain.

    What happens when your proprietary part fails and there's no longer a way to get it serviced, repaired or replaced.

    Quote Originally Posted by jadam View Post
    It’s only needed for an AR. A simpler system can be made by abandoning the legacy part (BCG) and you also add another layer of differentiation from an AR.
    Which is why I think they've chosen to go the route of a proprietary bcg. I did point out the possible concern of going with a standard AR bcg in my previous post.
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    Business Member SpectreBallistics's Avatar
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    Quote Originally Posted by jiffx2781 View Post
    Perhaps they are concerned the RCMP will find a way to determine that it could be easily converted back to semi auto. Really all you'd have to do is drill the hole through the front of the receiver for the gas tube and you'd be back up and running.

    Perhaps a solution would be to machine the channel in the top of the upper not as deep so you could still use standard bcg and buffer spring BUT the gas key would have to be removed in order for it to fit. They would still need to find a simple way of attaching the side charging handle to a standard unmodified bcg which could prove to be a bit of a road block.
    Simply drilling a hole for a gas tube will not allow you in any way to convert the rifle to semi-auto. The buffer spring is completely omitted from the design. Infact the mount point for the stock is not even drilled all the way though the rifle, and is slightly offset from the bore axis by a couple of mm's to ensue the gun can't be converted.

    As for a proprietary BCG, yes it's a downside but necessary. It is possible to permanently convert a standard BGC to work with the rifle.

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