I cant quiet understand people who complain about SOTAR not showing part of a process. This guys makes amazing quality, informative videos with no paid advertising. They guy runs a school. If you need that level of instruction, pay the man and attend one of his classes. Keep up the amazing videos. We appreciate whatever instruction you are willing to provide.
It's just like you said, people want the full SOTAR class instruction without having to pay for or experience the actual class. I agree Chad does a fantastic job as is
Sotar: "heres an issue that arises sometimes" Me: oh yes, I see a quick solution Sotar: "Now to fix this you dont just break out the Dremel" Me: *(slowly closes dremel case)*
I look at my rifles that I have assembled since 07 and all I can say is the God's of AR's love me. only issues have magazine induced and the nut behind the trigger. thank you for your time and information
Blending both at the same time also allows microscopic steel particles to become embedded into the aluminum which leads to a corrosion cell. The steel being the anode and aluminum being the cathode will cause the aluminum to be eaten in the presence of an electrolyte rich medium.
I jast want to say thank you for covering that area of the barrel extension and feed ramps very educational topic and actually it made allot of since, plus is a good place to keep an eye on. great content I love your channel
This just shows it doesn't matter if you have a 2K rifle or $200 rifle, the manufacturer don't QC everything. My BCM upper had this issue while my DD MK18 hasn't. I wish Chad would start up his own AR company. I would buy parts from him because I'm sure he would QC everything.
TCarstens1 So the claim to fame for Hodge Defense is that the rifles are meticulously built by one guy who is regarded as an industry expert. The finish, QC and details are supposed to be second to none because the rifles are made in limited small runs. I don’t own one and wouldn’t purchase one
Great one! One of the reasons you always make sure both your upper and barrel have the same ramp cuts. i.e. M4 feed ramp barrel with M4 ramp uppers. I have seen similar issue with M4 ramped upper and non M4 ramped barrel extension.
M4 ramped uppers must have M4 ramped barrels, but it's worth noting that rifle ramped uppers are usually just fine with a "mismatched" M4 ramped barrel. Perhaps not the ideal, but I have at least two like that and both work just fine.
In the high tech world whenever we had an issue with a not fit for use part we would require the supplier to provide a certificate of compliance for any future shipments. For suspect suppliers we would conduct an inspection on every piece and charge the supplier for auditing their lot because they were not on the approved supplier list. I would think that a qualified gunsmith at a respectable local gun store would attend your training. They in turn would be well qualified to be able to provide a certificate of compliance with each and every AR-15 that they sell. I believe that they would be inundated with customers that would appreciate the value added service they provide and reward them with dollars.
Just checked my Grendel build and it's perfect. I used an expensive upper receiver and barrel, I think that helps. Both my uppers are VLTOR which is very nicely machined.
I had that on a 6.5 Grendel -- and at first didn't see or understand it. Using Prvi Partisan FMJ ammo -- nearly every round would catch the point of the bullet and stop feeding. It's a MAJOR flaw -- especially when the rifle can seem to function fine, but then ammo is changed and things so bad!
My Aero upper has a slightly twisted barrel, which has the feed ramps are just like yours in the vid, so thanks for the vid. Mine don't have a feed issue but it's digging deep scratches in the projectile, I'm afraid it will damage the rifling.
I have this EXACT problem with my m&p15. I'm glad you mentioned the bit about not dremeling the aluminum upper, removing the anodizing; I was about to go get the dremel. I dont necessarily need help with the removing barrel part, but did you make a follow-up video about what to do with the feed ramps?
Love your videos man, can you point me to some info about different magazine profiles and how different mags feed the tip of the projectile into the chamber?
Upper...the lowers generally tack on 6 to 7 hundred more, or more. Complete DD rifles are about 1600 cheapest. That's why I build my own as well. My Franken rifle is just as well put together as any other out there.
I was pleasantly surprised, my Aero receiver and Ballistic Advantage barrel mated almost perfectly (even though my neanderthal ass put them together). Never knew to check this, thanks a ton.
I haven't fired a shot through my new AR. The first thing I did was polish the barrel. the second thing I'm going to do is Polish the feed ramps . The third thing I'm going to do is lap the receiver. Then the gun will be fit to fire.
What if it’s the upper receiver partially covering the feed ramps of the barrel extension? I’ve never had feeding issues or anything but your videos have made me a bit obsessive with checking things on my rifles lol
I started with AR rifles in 1989 and now have put many together so I am dumb founded at reading all the problems in the comments about AR rifles because never have I seen these problems. I buy only known quality brands when assembling a AR . I have a feeling all of these problems are coming from off the wall odd ball brands & AR parts. I have pretty well settled on AR Stoner and Aero precision for my AR build parts
I see consistent problems with higher tier AR parts and manufacturers. Does not mean the parts are bad, it means not everything is drop-in or completely compatible.
Hello , I have a M16 retro upper and my BCG and Magpul vise block does not go in barrel ramp. Would like to send you a video. the crazy part is that i have an old colt AR and that BCG fits with no issue.
Is removing the anodizing really that big of a deal? If you sand away all ano to bare aluminum, it will inevitably oxidize. Aluminum oxide is extremely hard.
Feed ramps, and feed ramp design are an issue. I was designing feed ramps for an AR10 barrel extension, and i was not sure how it should look dimension wise. Probably its best to keep the angles close to the colt drawings and make sure the ramps meet up with the upper receiver. Well only time will tell once the thing is there, and we will see how it feeds.
So it appeared the barrel is inset too far. Would you work the ramps or shim the barrel to pull it out further? Or better yet, what is the correct way?
so is it safe to assume that if one does apply a file to the feed ramp while attached to the upper ,that upper should be considered for the scrap pile ?
What about the opposite situation where the barrel extension feed ramps are a little bit past the receiver cuts? My BCM upper is like this but I haven't had an issue yet (very few rounds though). I would assume this is not an issue since one cut leads into the other cut and there is no ledge in the way of the bullets path.
Any bit of overhang is not acceptable to me. I have observed too many issues with feeding and consistency to let it pass. What you allow on your own builds is your call.
Dude, I love your videos, but you give me so much to worry about. It’s getting hard to pull the trigger, sorry about that, on any new barreled uppers within my budget
I never approved of the M4 ramps. A bad solution to fix a problem that is really the fault of out of spec. mags and magazine catch position. The steeper ramp simply increases impact on the bullet tip and forcing a more severe incline into the chamber.
