Spectre Ballistics Light Practical Carbine - NR Receiver Set

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SpectreBallistics said:
We are waiting for the FRT and for warmer weather. We have been running hundreds of dummy rounds though the prototype and have a few small changes to make to the bolt body. We found that hammers with a notch may jam. We also found that smooth feeding requires good magazines and smooth feed ramps. E-lander and CPD mags are running great, some cheap USGI mags are terrible. A craptastic chinesium trigger might bind when extracting the spent case. NEA barrels are not so great for feeding, while a Maple Ridge barrel is nice. People will need to keep this in mind when building their guns. Use good components, not cheapo ones.

This week we are focusing on production fixturing for our new Glock Muzzle brakes. Our material for brakes is scheduled to arrive late this week so we want to make chips ASAP. Next week we plan on designing production fixtures for the C-71 rifle and hopefully start production in a week or two.
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nice to read about the mags you're testing.....have you happened to have tested the e-lander .458 socom magazines, MFT 10 rounder, or atrs 10 rounder magazines? if not....i would gladly test those magazines if you ship me a prototype....hehe
 
Feb 01 Update:
Good evening CGN,

We've been spending the last few weeks working on making the rifle feed and extract smoothly. A few things of note, a quality barrel is really important. Extraction will be difficult if your chamber is corroded or poorly finished. Also, really spicy ammo can cause extraction issues too. Overall the rifle is running very well now and we're essentially done all R&D at this point.

Moving forward we're going to start working on our CNC fixturing for the first production run. We need to build jigs for uppers, lowers, bolt knobs, and bolt bodies. We expect this to take a few weeks, but is nothing crazy. We're also working on our first run of Glock muzzle brakes so machine time for prototyping is a bit limited for the next couple of weeks.

Here's a video from this morning of our test firing:
 
KND said:
Looking good and since it's bolt action then we can go as short as 26 inch OAL, right ?
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If it doesn't fold or collapse or change length and it's manual action and it is considered a rifle, it can be as short as you want. You could put one of those short fixed stocks and a super short barrel on it and get it under 26 inches. Like the mares legs with 9 inch barrels.
 
I don't know if it's too late to suggest, but wouldn't it be better if you can put a spring behind the carrier so it can actually push the bolt forward, just without any mechanism for the carrier to be functioned "semi-automatically"?

That would allow you to 1) just let go of the charging handle to chamber the round, and 2) allow the carrier to stay where it is while chambered.

The action of pushing the handle back forward looks a little silly to me.


By the way, if you find that pulling the carrier back to extract the round is too difficult, perhaps you need a mechanism for the handle to "pry" open the first 1-2 of carrier travel to unlock the bolt and allow the case to be extracted. Something like the X95 IDF charging handle.
 
PinaKaleada said:
By the way, if you find that pulling the carrier back to extract the round is too difficult, perhaps you need a mechanism for the handle to "pry" open the first 1-2 of carrier travel to unlock the bolt and allow the case to be extracted. Something like the X95 IDF charging handle.
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You could probably modify yours and maybe mount a forward assist facing backwards on the non charging handle side. That'd do it.
 
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