(03-07-2018, 12:29 PM)B2hibry Wrote:

(03-07-2018, 09:47 AM)MyBloodIsTeal Wrote: The only part that is designated a gun is the lower receiver.  That is what counts as the gun for the purpose of the background check.  changing the parts that bolt to it does not change the model number of the gun (lower receiver).  It's not a difficult concept, the lower receiver is the gun, the rest are parts that DO NOT change the model of the gun.  Nothing about the lower receiver changes when building different variations of the AR-15,  AR-15 does not designate that it is .223 caliber, or that its a rifle vs a pistol, or an SBR with a tax stamp.  I custom build them, I have a little knowledge in this department.

Look, as someone with decades of hands on, I get it. May not be a difficult concept but it is one that people commonly confuse. Even some lower end manufacturers throw the designator in their descriptions for those consumers that don't understand. As someone who custom builds them in your garage or for a company, you should know that the lower can in fact change in serialization registration and markings. You also understand that going with modification outside that of similar sized cartridges (.223, 5.56, .300, etc.) not only require lower modifications but sometimes upper modifications that the ATF deems requiring a Form 1, Form 4, and possibly even another 4473 depending on said modifications. This is contrary to what you state "The only part that is designated a gun is the lower receiver. That is what counts as the gun for the purpose of the background check." In addition, any modification to a purchased AR-15 rifle, pistol, SBR, fall under the ATF designation of "AR type firearm". Therefore, AR-15 is a specific model designed to fire a standard configuration of .223/5.56 as previously stated and anything beyond that purchased in kit form or manufactured (80% lower) falls under the "AR type firearm" designation. Platform (style) versus model...  

- Do you describe your .300 a AR-15 .300 or AR .300 blackout?
- Would you describe an AR styled rifle in .308 an AR-15 .308 or AR-10?

I appreciate you trying to add some personal thoughts on different AR type configurations but it is getting off topic and only feeds into the narrative that all black rifles are AR-15s, military equivalents, scary, and my personal favorite...really dangerous because they fire fully semi-automatic . With that said, guns have now been deemed so offensive that magazines are relegated to the old school porn sensorship. This picture was taken at Orlando International at Hudson News...