Combat Armory Bcg Review or Any Bad Pro Con
| Posted: 12/3/2018 vi:47:02 PM EDT Also someone beating the ejector roll pin in it's only kinda meh. The gas key looks phosphate and chrome lined. The extractor is MIM and that was expected. I didn't pull the ejector because of the marring around pin hole. I bought it for a Grendel build. |
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The prophylactic bumper in the extractor spring appears to be backwards and the carrier key screws are (YFS) junk. |
Posted: 12/3/2018 seven:29:23 PM EDT |
Yeah, no thanks. I'd send it back and replace it with something amend quality. |
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May exist fine for a budget build but I'd spend another $xv and get the PSA Premium FA BCG. Just hey, sometimes ya don't know til you order one and take a take chances. I didn't know anyone even had a BCG for $45. |
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I'm not using the bolt at all. I needed everything else for a budget Grendel build. It's near what I expected. |
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Looks similar the x39 bolt I got from midway for $lx |
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Its fine for a build. Not as good every bit others but non much worse either. Every bit mim....cough cough, some reputable places using mim in bcgs. Permit u.s.a. know how it works out |
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Quoted: That is the 5.56 bolt that came with the BCG. I am replacing information technology with a Proverb I already have. Kinda vague mail unfortunately. |
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Pretty sure they are BCA. My CA BCG was identical to my BCA BCG. EXACTLY. They might not be pretty, but I haven't had any issues with BCA BCGs. |
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Looks like you got what y'all paid for. |
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summit has 308 toolcraft bcgs for $80 |
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Quoted: Ouch. I but paid l for a stripped bolt. |
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I just got mine in the mail too. First thing I noticed is the half assed staking of the gas keys. O well. Information technology was never going in a rifle. I got their BCG and CH to throw in my handbag for some rifle classes I am taking side by side year. Just needed some backup parts. |
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Quoted: Pretty much this. I stick to PSA Premium or Toolcraft for quality budget BCGs. |
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meh, staking is overrated and guys become their panties in a bunch over it too often. While that staking is not platonic, it'due south adequate as y'all only need minimal resistance to foreclose the screws from backing (if it'south going to happen at all) if you paid less than $l for that bcg, looks like a good bargain provided information technology functions. next question is if they are the aforementioned as the BCAs and so you lot got a great bargain because reviews are good on those. |
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That'southward easily $45 worth of bcg. The PSA premiums for $60 are probably a improve value. |
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I can't stand the yfs screws used on bolt carriers. I know they are used on track and things but information technology fabricated me sell my bootleg adaptable bcg subsequently opening the package and seeing it. |
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Quoted: Damn, that Bootleg is not cheap. I worry more virtually the guy torquing the fastener, than the fastener's country of origin, but I would have hoped to run into them use a better spiral for the price of that BCG |
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Quoted: Quoted: Quoted: Pretty much this. I stick to PSA Premium or Toolcraft for quality budget BCGs. I agree the PSA BCG is a better value. My Maxim bolt is in the carrier and everything part tested only fine. |
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Quoted: Cheers for the link. You're welcome. |
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Looks about like the BCA bolt carriers I've seen. I wouldn't exist surprised if these are BCA. I gauge for $45 one shouldn't expect perfection, but that is nonetheless pretty rough. |
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Quoted: This It is a skillful price for a spare BCG. If y'all want quality, I am sure Primary Arms or 100 other vendors tin aid you lot spend your money. |
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OP, how can yous tell the extractor is mim? The stamped circles? |
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Quoted: They're not stamped, they're artifacts from the mold. |
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Ever build models when you lot were a child? Remember how the parts in the kit were attached to a "tree". That similar to how MIM is washed, powdered metal and a polymer powder are injected into a "tree" that has the molds for the parts attached, so information technology's heated. Ketal Injected Yardolding |
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Quoted: Retrieve how the parts in the kit were attached to a "tree". That like to how MIM is done, powdered metal and a polymer powder are injected into a "tree" that has the molds for the parts attached, then it'south heated. Metal Injected 1000olding Lol...yes I do retrieve. Thanks. |
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Quoted: Thanks. Quoted: Quoted: Remember how the parts in the kit were fastened to a "tree". That similar to how MIM is washed, powdered metal and a polymer pulverisation are injected into a "tree" that has the molds for the parts attached, then it'south heated. Chiliadetal Injected Molding Lol...yes I do recall. Thank you. The circular circles on the extractor is from the ejectors congenital in to the mold. When the material cools the mold opens and the ejectors push the part and the runner out. The runner is the "tree" section. The material runs through the mold to the cavity where the function is fabricated. |
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Quoted: The thicker "MPI" mark is just like the 1 on my BCA bolt. |
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If its bca, not a bad buy then as the reviews are proficient |
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Quoted: I'k a parts snob and all, but there have to be a zillion YFS screws in carrier keys out there and I'm not aware of failures existence common. I'd exist interested to know if that is the case, though. |
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Quoted: I'chiliad a parts snob and all, but there accept to exist a zillion YFS screws in carrier keys out there and I'm not aware of failures being common. I'd be interested to know if that is the example, though. Nosotros occasionally see failures on carrier key screws, YFS claims they are "Grade 8". The term "Form 8" on socket head cap screws has been obsolete for almost four decades in the U.S. No U.S. manufacturer of socket head cap screws volition call their product "Grade eight". Apocryphal rated fasteners from "off shore" suppliers is well known issue. Y'all can purchase the Right ASTM A-574 rated at STRONGER than the quondam "Course 8" for around $10.00 for a hundred from McMaster Carr. Why adventure it? |
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Quoted: Counterfeit rated fasteners from "off shore" suppliers is well known effect. Y'all can purchase the Right ASTM A-574 rated at STRONGER than the old "Grade 8" for effectually $x.00 for a hundred from McMaster Carr. Why chance information technology? https://i.imgur.com/MmeJxPy.png Quoted: Quoted: I'm a parts snob and all, but there have to be a zillion YFS screws in carrier keys out there and I'm not aware of failures being common. I'd exist interested to know if that is the example, though. We occasionally see failures on carrier central screws, YFS claims they are "Grade 8". The term "Form 8" on socket head cap screws has been obsolete for almost four decades in the U.S. No U.S. manufacturer of socket head cap screws volition call their product "Grade 8". Counterfeit rated fasteners from "off shore" suppliers is well known issue. You can buy the Right ASTM A-574 rated at STRONGER than the old "Grade eight" for effectually $10.00 for a hundred from McMaster Carr. Why risk it? https://i.imgur.com/MmeJxPy.png Never seen a gas key sheer off from YFS screws breaking. |
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Never understood why cheap out on the a disquisitional component similar a BCG....yous can get quality C158 bolts from toolcraft and psa for $80 bucks...shoot I got my nitrided Toolcraft C158 bolt from SpiceTac for $78 shipped... I'd send that BCG back... |
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Quoted: Quoted: Quoted: Quoted: I'one thousand a parts snob and all, but there have to be a zillion YFS screws in carrier keys out there and I'm not enlightened of failures being common. I'd be interested to know if that is the example, though. We occasionally see failures on carrier central screws, YFS claims they are "Course eight". The term "Grade eight" on socket head cap screws has been obsolete for most four decades in the U.S. No U.South. manufacturer of socket head cap screws will call their production "Grade 8". Counterfeit rated fasteners from "off shore" suppliers is well known issue. You can purchase the CORRECT ASTM A-574 rated at STRONGER than the onetime "Grade eight" for around $ten.00 for a hundred from McMaster Carr. Why chance information technology? https://i.imgur.com/MmeJxPy.png Never seen a gas central sheer off from YFS screws breaking. Hold! Only thing I see as a issue is the mim. Curious how this holds up |
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I have seen broken front carrier key screws and post with them. No thought who made them or if they were overtightened when installed. I read on one website there is a foreign spec for cap screws that has lower strength specs. What I got out of reading information technology was if you bought strange made socket caput caps screws to brand sure they were made to the i the Usa used and not the other spec. If they were non identified as to which spec you might get ones fabricated to the lower strength one. It has been mentioned in other threads that the bolt carrier key screw is not a standard socket head cap spiral. If you wait in the TM is has a part number that is non listed every bit being a standard spiral. Someone posted at that place is a spec list for information technology but I have never seen it posted. |
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