ar 15 receiver questions

outrider58 · Apr 1, 2015

ken792 said:
If you want an evil barrel "rifle" do an AR pistol with an unpinned 14.5" barrel. It's close enough to a rifle, but still a pistol. You can shoulder the buffer tube, just not an arm brace.

outrider58 · Apr 1, 2015

CSS said:
It's based on barrel profile, meaning diameter at the gas port is .750 (HBAR). Doesn't need to be inscribed anywhere.

Exactly! To be able to prove it's not an H-bar, they have to be able to prove what one is...is that clear enough? Logic. You can't prove a negative...only a positive.

clandestine · Apr 1, 2015

CSS said:
It's based on barrel profile, meaning diameter at the gas port is .750 (HBAR). Doesn't need to be inscribed anywhere.

Nope.

.750 Gas Seats are not all HBAR. M4 Barrels are .750 and so are Medium Contour Barrels.

CSS · Apr 1, 2015

clandestine said:
Nope.

.750 Gas Seats are not all HBAR. M4 Barrels are .750 and so are Medium Contour Barrels.

I should have elaborated a bit on my previous post. The entire length of the barrel also needs to be the same diameter (minus the .750 at the gas port) and can't have the ability to attach a grenade launcher.

outrider58 · Apr 1, 2015

CSS said:
I should have elaborated a bit on my previous post. The entire length of the barrel also needs to be the same diameter (minus the .750 at the gas port) and can't have the ability to attach a grenade launcher.

Well, even H-bars are narrower in front (towards the muzzle) than 3/4''. Arbitrarily, the portion behind the gas block, where it grows to say, 9.50'', can't get any narrower than that all the way to the chamber(as I have observed anyway). There has to be a spec on what an H-bar is, or manufacturers can't determine what the hell an H-bar is. And if they can't, then the whole 'marking' system is completely arbitrary. Time for more navel gazing?

rseymorejr · Apr 1, 2015

outrider58 said:
Well, even H-bars are narrower in front (towards the muzzle) than 3/4''. Arbitrarily, the portion behind the gas block, where it grows to say, 9.50'', can't get any narrower than that all the way to the chamber(as I have observed anyway). There has to be a spec on what an H-bar is, or manufacturers can't determine what the hell an H-bar is. And if they can't, then the whole 'marking' system is completely arbitrary. Time for more navel gazing?

Arbitrary is the basis for all of Maryland's gun laws

outrider58 · Apr 1, 2015

rseymorejr said:
Arbitrary is the basis for all of Maryland's gun laws

You said that right! Intentional? Duh! :lol2:

Biggfoot44 · Apr 1, 2015

No , there are no specs. Yes , it IS all arbitrary.

SigMatt · Apr 1, 2015

Imagine the fun you have with a mix of pre and post-2013 lowers! I have several lowers that are pre-2013 that I can have any configuration on and two that are HBAR only. So I can buy an M4 contoured upper or replacement barrel for my pre-2013 lowers but can't attach them to the post-2013 lowers.

Clear as mud, for sure.

Matt

ted76 · Apr 1, 2015

What about thr Remington R-15's with a .680" barrel in front of the gas block and .850 barrel behind the gas block in .223, that were sold cash and carry by Marylsnd dealers before 10/1/2013?

CSS · Apr 1, 2015

Sev said:
I'm getting conflicting answers on my two questions...

1. I know I can buy a stripped lower receiver in maryland. I also know I can build it in a pistol configuration, or in a heavy barrel configuration in compliance with the law. Can I build a stripped lower receiver, purchased after the law changed, with an 18" barrel in a contour that is not heavy barrel?

2. Can I make an 80% lower into a 16" heavy barrel rifle or pistol?

I made the mistake of ordering an 18" SPR upper (hell of a deal), but was planning on putting it on a new receiver when I buy it. I hope I'm not out of luck

you'll need to define heavy barrel first

hint: it's whatever you want it to be :innocent0

quattroginger · Apr 2, 2015

to piggyback off these questions which i was curious about as well. can i in MD legally buy a stripped lower if intended for pistol? i thought it was legal as long as it was sold as a pistol.

outrider58 · Apr 2, 2015

quattroginger said:
to piggyback off these questions which i was curious about as well. can i in MD legally buy a stripped lower if intended for pistol? i thought it was legal as long as it was sold as a pistol.

Stripped lowers(AR) are legal to buy in Md. The lower is designated ''multi'' which means it can be configured any way you wish, within the restrictions of state and federal law. There is a waiting period and forms to fill out.

dontpanic · Apr 2, 2015

outrider58 said:
Stripped lowers(AR) are legal to buy in Md. The lower is designated ''multi'' which means it can be configured any way you wish, within the restrictions of state and federal law. There is a waiting period and forms to fill out.

It is designated as "other". Any lower that has not been made into a long gun can be built into a pistol. It is just easier if it was originally transferred as other.

In order to purchase a stripped lower as a "pistol", it would have to be on the roster.

j_h_smith · Apr 2, 2015

JohnnyE said:
Please provide a citation to this in the FSA of 2013, or any guidance provided by the attorney general. From my look at the FSA, H-Bars are exempt from the prohibition on sales, but they are H-Bars based on the barrel's profile, not its markings. The test is the shape, not the stamping.

I believe this is the link that gave the information. The link is now dead.

http://www.mdsp.org/LinkClick.aspx?fileticket=835OWi-sH2U=&tabid=429&mid=1074

Sev · Apr 2, 2015

back to my question about milling an 80:

do I have to register it with the msp or put a SN on it? I don't want to potentially catch flack if I finish an 80 into a pistol and (for example) get pulled over in a traffic stop.

I guess what I'm trying to ask is what are the requirements for how to finish an 80% receiver

ken792 · Apr 2, 2015

Sev said:
back to my question about milling an 80:

do I have to register it with the msp or put a SN on it? I don't want to potentially catch flack if I finish an 80 into a pistol and (for example) get pulled over in a traffic stop.

I guess what I'm trying to ask is what are the requirements for how to finish an 80% receiver

No

j_h_smith · Apr 2, 2015

outrider58 said:
Exactly! To be able to prove it's not an H-bar, they have to be able to prove what one is...is that clear enough? Logic. You can't prove a negative...only a positive.

Wait a minute, we are talking about the MDSP. Isn't that SOP for them?

j_h_smith · Apr 2, 2015

Sev said:
back to my question about milling an 80:

do I have to register it with the msp or put a SN on it? I don't want to potentially catch flack if I finish an 80 into a pistol and (for example) get pulled over in a traffic stop.

I guess what I'm trying to ask is what are the requirements for how to finish an 80% receiver

That has been one of my major concerns about an 80% receiver. I am perfectly legal in building my AR, but a cop sees a firearm without a serial number. What do you think he's going to do? I bet it involves me having to retain a lawyer and some time before I see that AR and any other firearms I may have had with me.

How does one go about proving to a police agency that I made this AR and I am within my rights to have this firearm in my possession? Then, would it matter?

Sev · Apr 2, 2015

ken792 said:
No

no to both?

ar 15 receiver questions

The #1 community for Gun Owners of the Northeast

Member Benefits:

Eats Bacon Raw

Eats Bacon Raw

AR-15 Savant

Active Member

Eats Bacon Raw

Ultimate Member

Eats Bacon Raw

Ultimate Member

Ultimate Member

Ultimate Member

Active Member

Active Member

Eats Bacon Raw

Ultimate Member

Ultimate Member

"Vern"

Ultimate Member

Ultimate Member

Ultimate Member

"Vern"

Users who are viewing this thread

Log in

Forum statistics