ARX 160/100 Ejection Port Cover

[ARCHIVED THREAD] - ARX 160/100 Ejection Port Cover

Posted: 4/17/2018 9:21:15 PM EDT

The Ejection Port Cover was standard issue for the ARX160A2/SF (special forces) rifle. The 160A2/SF was issued in a kit-like configuration that came in a foamed hard case with an extra barrel (sbr) and accessories. Photos of the A2/SF “kit” were published around 2012 but we’re quickly deleted off the web. I’m probably one in a very short list of sumbishes that has copies of the photos.

The Ejection Port Cover was mounted on the left side and it was specifically designed to prevent/ divert suppressor gas blow back away from the operators face.

The Cover is more rare than an albino Loch Ness Monster and photos of the ARX160A2/SF in kit form are basically none existent.

Here’s my rendition of the ARX EPC.

Posted: 4/17/2018 9:24:24 PM EDT

[#1]

I love my ARX but hate shooting it suppressed - this would be a nice simple fix to the problem. Maybe someone will offer the part

Posted: 4/17/2018 9:32:50 PM EDT

[#2]

The port cover featured in the photo is on its way to a fellow member, should he decide to take it. :) I’m hoping for positive feedback.

Have you ever seen a photo of the factory EPC?

Posted: 4/17/2018 10:20:43 PM EDT

[#3]

Thank you Jimmy! I'll put it on and take it to the range when it arrives. Can't wait to try it out with my Griffin alpha.

Posted: 4/17/2018 10:24:13 PM EDT

[#4]

Yes, Sir. Thank You. Please come back and post a report.

Posted: 4/19/2018 8:21:37 PM EDT

[#5]

Quote History

Quoted:
I love my ARX but hate shooting it suppressed - this would be a nice simple fix to the problem. Maybe someone will offer the part

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That would be Jimmy.

Posted: 4/26/2018 9:56:07 PM EDT

[#6]

Modified the design a tad. Still working on it...

Posted: 5/2/2018 12:10:38 PM EDT

[#7]

I read a review about the ARX that was posted over on M4Carbine dot net. The OP said he was a contractor over in the sandbox somewhere training locals on the ARX. He mentioned a cover like this for the ARX. When I read about it, I wanted one. I called Beretta about buying one and they said it wasn’t on their parts list.

Are these for sale somewhere?

Posted: 5/2/2018 3:08:56 PM EDT

[#8]

I'm waiting to hear back from Beretta/Italy but all indications are that the subject EPC was strictly a military contract item. It never entered the stream of commerce, either here or abroad.

A newly re-designed [proto2] EPC has been shipped to a fellow member that has graciously agreed to test for form and function. His reports have been extremely detailed and well documented. I'll report back with his findings and conclusions as soon as we exchange relevant comm.

Posted: 5/4/2018 2:28:58 PM EDT

[#9]

Your right, I can't find a picture online of this....thats rare.

Posted: 5/4/2018 3:15:16 PM EDT

[#10]

No worries. I intend to post “The Photo” on this Thread.

You know, after careful review of the subject photo it appears the factory EPC has gas channels molded/formed from underneath the body to help direct suppressor blowback toward the muzzle. Those Italian engineers are smart sumbishes!! :)

Posted: 5/17/2018 10:56:18 PM EDT

[#11]

Update:

Today I received a detailed report with photographs pertaining to the testing of the EPC / Prototype-2. All indications are that the current EPC Proto-2 virtually eliminates suppressor gas blowback toward the operators face. BUT with a positive, there’s always a negative. The issue is that a small amount of blowback is escaping vertically between the cover and the rifle, directly above and below the ejection port. The escaping blowback is leaving a nasty trace of powder residue on the rifle but I think I can eliminate this by tweeking the design.

My next design (EPC / Prototype-3) will have shallow gas channel(s) molded into the EPC body that should aid to divert most of the blowback, forward.

I have not gotten clearance to disclose the name of the member/ Testor but he has been phenomenal in every aspect of this project. Simply put, I couldn’t do this without his participation and detailed feedback. Thanks, Bro..!

More to come in the near future..

Posted: 5/25/2018 5:31:08 PM EDT

[#12]

Jimmy, is their a way to make one to were you could have the charging handle on the same side as the ejection port is on?

Posted: 5/25/2018 6:47:42 PM EDT

[#13]

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Jimmy, is their a way to make one to were you could have the charging handle on the same side as the ejection port is on?

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I’m afraid not. The opening around the reciprocating charging handle would create an easy escape for blow-back.

Posted: 5/25/2018 6:55:59 PM EDT

[#14]

Here’s the infamous photo of the military issued ARX160-SF featuring the factory EPC. Note the foam cut out for a grenade launcher. How cool is that..!?!.

Posted: 5/25/2018 7:59:25 PM EDT

[#15]

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Quoted:

I’m afraid not. The opening around the reciprocating charging handle would create an easy escape for blow-back.

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Would it reduce the gas over a non-partially blocked port?

Posted: 5/25/2018 8:15:48 PM EDT

[#16]

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Quoted:

Would it reduce the gas over a non-partially blocked port?

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Probably, but not enough to prevent a stream of blowback in the face. The operative is to divert 100% blowback from the face. We’re almost there..

Posted: 6/15/2018 11:11:45 AM EDT

[#17]

Quote History

Quoted:
Here’s the infamous photo of the military issued ARX160-SF featuring the factory EPC. Note the foam cut out for a grenade launcher. How cool is that..!?!.

http://i2.photobucket.com/albums/y6/los3088/CR%20Models/attachment-1_zpsctdlia1o.jpeg

View Quote

Is there any information on that case? Make, model, etc.

Any updates on the port cover?

Posted: 6/15/2018 10:38:19 PM EDT

[#18]

Quote History

Quoted:
Probably, but not enough to prevent a stream of blowback in the face. The operative is to divert 100% blowback from the face. We’re almost there..

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Quote History

Quoted:

Quoted:

Would it reduce the gas over a non-partially blocked port?

Probably, but not enough to prevent a stream of blowback in the face. The operative is to divert 100% blowback from the face. We’re almost there..

The posted pic of the kit shows the way. That central port with the fwd horizontal protrusion probably directs spent gasses fwd.

Posted: 7/23/2018 10:41:37 PM EDT

[#19]

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Quoted:

The posted pic of the kit shows the way. That central port with the fwd horizontal protrusion probably directs spent gasses fwd.

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Roger that.

Posted: 7/23/2018 10:48:06 PM EDT

[#20]

Quote History

Quoted:
Is there any information on that case? Make, model, etc.

Any updates on the port cover?

View Quote View All Quotes

View All Quotes

Quote History

Quoted:

Quoted:
Here’s the infamous photo of the military issued ARX160-SF featuring the factory EPC. Note the foam cut out for a grenade launcher. How cool is that..!?!.

http://i2.photobucket.com/albums/y6/los3088/CR%20Models/attachment-1_zpsctdlia1o.jpeg

Is there any information on that case? Make, model, etc.

Any updates on the port cover?

Negative. I’ve made several attempts with Beretta Italia to obtain info on the military issued kit. No disclosure whatsoever. It’s as if the Kit never existed. No info on the mil EPC, either.

The last proto tested extremely well but I’m going to tweak the design. I think I’m close.

Posted: 7/25/2018 3:45:03 PM EDT

[#21]

This is the rendering of the latest proto that I’ll be submitting for testing. I feel good about this one.

Posted: 7/25/2018 6:54:40 PM EDT

[#22]

Do you have a waitlist?

Posted: 7/25/2018 7:03:08 PM EDT

[#23]

Yes. A few from here but most are from the Beretta forum.

Posted: 7/25/2018 8:27:45 PM EDT

[#24]

I’m down for one. Doing FDE or black?

Posted: 7/25/2018 8:45:22 PM EDT

[#25]

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Quoted:
I’m down for one. Doing FDE or black?

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In both colors, for sure.

FYI, When using the EPC on a suppressed ARX, expect blowback residue to accumulate underneath the covered portion of the rifle and around the integrated exhaust ports of the EPC. Of course, this will be much more noticeable on a FDE Rifle.