AR Sponsor
AS Designs ARHK (Page 2 of 14)
Joined:
Mar 2025
Posts:
74
EE: 0% (0)
KS, USA
Joined:
Mar 2025
Posts:
75
EE: 0% (0)
KS, USA
|
Originally Posted By Corn-fed-556: I have a SP5 lower on pre-order with them now. Just sent off an email requesting a refund or conversion into pre-order for this cassette. This is my grail FRT for the mp5 platform From a customer service standpoint, very impressed. The handled the complete refund within an hour, no questions asked. Thanks ASD. |
|
Originally Posted By Corn-fed-556: From a customer service standpoint, very impressed. The handled the complete refund within an hour, no questions asked. Thanks ASD. I may go with a AL lower and arcfire V2 with HK selectors cause G$ trigger, but I what to see more of the HK trigger pack before any decisions. |
|
Originally Posted By STJ: Yea they refunded me quickly. I may go with a AL lower and arcfire V2 with HK selectors cause G$ trigger, but I what to see more of the HK trigger pack before any decisions. ASD Customer Service is very good...you would think there would be an option to switch an existing order to a pre-order with the V2 and HK Selectors... |
Joined:
Mar 2025
Posts:
76
EE: 0% (0)
KS, USA
Member
Joined:
Dec 2023
Posts:
7663
EE: 100% (7)
USA
|
Originally Posted By Corn-fed-556: https://www.hkpro.com/attachments/1000302079-jpg.501159/?auto=webp&fit=bounds&format=pjgp&height=1920&optimize=high&width=1920 Wonder if it’s still the classic mp5 trigger pull. I’d probably have my sp5 lower laser engraved with additional pictograms for this thing. Well done ASD and S3igu2. God Bless ya. Incredible. |
Joined:
Oct 2025
Posts:
64
EE: 0% (0)
TX, USA
|
Originally Posted By Corn-fed-556: https://www.hkpro.com/attachments/1000302079-jpg.501159/?auto=webp&fit=bounds&format=pjgp&height=1920&optimize=high&width=1920 Wonder if it’s still the classic mp5 trigger pull. I’d probably have my sp5 lower laser engraved with additional pictograms for this thing. Well done ASD and S3igu2. God Bless ya. The pull weight has been cleaned up, its around 4 to 6 pounds and feels more like a mil spec ar15 FCG, the selector detent setup is also now much better witch imo feels like a AR15 selector in terms of detent positions. |
|
Originally Posted By s3igu2: The pull weight has been cleaned up, its around 4 to 6 pounds and feels more like a mil spec ar15 FCG, the selector detent setup is also now much better witch imo feels like a AR15 selector in terms of detent positions. Originally Posted By s3igu2: Originally Posted By Corn-fed-556: https://www.hkpro.com/attachments/1000302079-jpg.501159/?auto=webp&fit=bounds&format=pjgp&height=1920&optimize=high&width=1920 Wonder if it’s still the classic mp5 trigger pull. I’d probably have my sp5 lower laser engraved with additional pictograms for this thing. Well done ASD and S3igu2. God Bless ya. The pull weight has been cleaned up, its around 4 to 6 pounds and feels more like a mil spec ar15 FCG, the selector detent setup is also now much better witch imo feels like a AR15 selector in terms of detent positions. That's awesome. Improved semi auto trigger on top of FRT functionality makes this even more appealing. |
Member
Joined:
Dec 2022
Posts:
7537
EE: 0% (0)
OK, USA
|
Originally Posted By s3igu2: Yes and it currently works with basically everything by swapping ejectors except 7.62x39, no FA carrier required and no trip in the upper its all fully contained in the lower. Are they reliable, projected to have a long service life and be serviceable by the end user? |
|
Originally Posted By BUCC_Guy: Tag Spent $700 on FRTing my MP5 but THIS thread is about what I really want. I’m glad I waited. |
The posts made on this forum are purely my private opinion and don’t represent any employer or entity I am professionally associated with.
|
Originally Posted By Jeeps-And-Guns: I just do not like the looks of the lowers to make a MP5 take AR grips and triggers. While they allow the use of a FRT, I feel it completely kills the classic MP5 look/lines. I am glad they are making these. The various AR FCG lowers worked but were less than ideal. The slip trip, sometimes hammer needs slight modification, needing to add a buffer in K guns... all variables you had to be concerned with. A fully drop in, no slip trip needed setup is what I personally have been waiting for so I'm very excited for this. |
Joined:
Oct 2025
Posts:
65
EE: 0% (0)
TX, USA
|
Originally Posted By lil_Sig: Are they reliable, projected to have a long service life and be serviceable by the end user? Yes, because ARHK wasn't really built with any limitations due to the size of the MP5 drop in footprint all the parts are able to be extremely durable and purpose built for this exact assembly, for example all the FCG and ARC parts are dedicated for ARHK meaning they aren't just modified to work. Also the ARHK is even higher leverage then the super safety so the active reset mode will be very reliable even with alot of pressure on the trigger. It will be serviceable and I'm confident its the most durable trigger reset device out there by far due to the fact it was built from the ground up to survive 1000s of rounds of 308 in a g3. |
|
Originally Posted By s3igu2: Yes, because ARHK wasn't really built with any limitations due to the size of the MP5 drop in footprint all the parts are able to be extremely durable and purpose built for this exact assembly, for example all the FCG and ARC parts are dedicated for ARHK meaning they aren't just modified to work. Also the ARHK is even higher leverage then the super safety so the active reset mode will be very reliable even with alot of pressure on the trigger. It will be serviceable and I'm confident its the most durable trigger reset device out there by far due to the fact it was built from the ground up to survive 1000s of rounds of 308 in a g3. Originally Posted By s3igu2: Originally Posted By lil_Sig: Are they reliable, projected to have a long service life and be serviceable by the end user? Yes, because ARHK wasn't really built with any limitations due to the size of the MP5 drop in footprint all the parts are able to be extremely durable and purpose built for this exact assembly, for example all the FCG and ARC parts are dedicated for ARHK meaning they aren't just modified to work. Also the ARHK is even higher leverage then the super safety so the active reset mode will be very reliable even with alot of pressure on the trigger. It will be serviceable and I'm confident its the most durable trigger reset device out there by far due to the fact it was built from the ground up to survive 1000s of rounds of 308 in a g3. Which means it should swap into a CETME... I'm excited for these. Any idea on a release date? |
"My friend, you would not tell with such high zest
To children ardent for some desperate glory,
The old Lie: Dulce et decorum est
Pro patria mori." -Wilfred Owen
To children ardent for some desperate glory,
The old Lie: Dulce et decorum est
Pro patria mori." -Wilfred Owen
|
Originally Posted By Bye_Felicia: Which means it should swap into a CETME... I'm excited for these. Any idea on a release date? Originally Posted By Bye_Felicia: Originally Posted By s3igu2: Originally Posted By lil_Sig: Are they reliable, projected to have a long service life and be serviceable by the end user? Yes, because ARHK wasn't really built with any limitations due to the size of the MP5 drop in footprint all the parts are able to be extremely durable and purpose built for this exact assembly, for example all the FCG and ARC parts are dedicated for ARHK meaning they aren't just modified to work. Also the ARHK is even higher leverage then the super safety so the active reset mode will be very reliable even with alot of pressure on the trigger. It will be serviceable and I'm confident its the most durable trigger reset device out there by far due to the fact it was built from the ground up to survive 1000s of rounds of 308 in a g3. Which means it should swap into a CETME... I'm excited for these. Any idea on a release date? Wonder if it would work with an AP5? |
|
Originally Posted By Captain92: Wonder if it would work with an AP5? Originally Posted By Captain92: Originally Posted By Bye_Felicia: Originally Posted By s3igu2: Originally Posted By lil_Sig: Are they reliable, projected to have a long service life and be serviceable by the end user? Yes, because ARHK wasn't really built with any limitations due to the size of the MP5 drop in footprint all the parts are able to be extremely durable and purpose built for this exact assembly, for example all the FCG and ARC parts are dedicated for ARHK meaning they aren't just modified to work. Also the ARHK is even higher leverage then the super safety so the active reset mode will be very reliable even with alot of pressure on the trigger. It will be serviceable and I'm confident its the most durable trigger reset device out there by far due to the fact it was built from the ground up to survive 1000s of rounds of 308 in a g3. Which means it should swap into a CETME... I'm excited for these. Any idea on a release date? Wonder if it would work with an AP5? Yes already been confirmed. From what he posted it'll work in almost any HK roller delayed gun design. He confirmed no on the 7.62x39 guns and that it hasn't been tested in the 21 yet. The roller delayed guns all use essentially the same trigger pack, just different ejectors, which he's stated can be swapped in unmodified. |
"My friend, you would not tell with such high zest
To children ardent for some desperate glory,
The old Lie: Dulce et decorum est
Pro patria mori." -Wilfred Owen
To children ardent for some desperate glory,
The old Lie: Dulce et decorum est
Pro patria mori." -Wilfred Owen
Member
Joined:
Dec 2023
Posts:
7756
EE: 100% (7)
USA
|
Originally Posted By s3igu2: Yes, because ARHK wasn't really built with any limitations due to the size of the MP5 drop in footprint all the parts are able to be extremely durable and purpose built for this exact assembly, for example all the FCG and ARC parts are dedicated for ARHK meaning they aren't just modified to work. Also the ARHK is even higher leverage then the super safety so the active reset mode will be very reliable even with alot of pressure on the trigger. It will be serviceable and I'm confident its the most durable trigger reset device out there by far due to the fact it was built from the ground up to survive 1000s of rounds of 308 in a g3. Originally Posted By s3igu2: Originally Posted By lil_Sig: Are they reliable, projected to have a long service life and be serviceable by the end user? Yes, because ARHK wasn't really built with any limitations due to the size of the MP5 drop in footprint all the parts are able to be extremely durable and purpose built for this exact assembly, for example all the FCG and ARC parts are dedicated for ARHK meaning they aren't just modified to work. Also the ARHK is even higher leverage then the super safety so the active reset mode will be very reliable even with alot of pressure on the trigger. It will be serviceable and I'm confident its the most durable trigger reset device out there by far due to the fact it was built from the ground up to survive 1000s of rounds of 308 in a g3. You are doing wonderful work. Thank you! |
|
Originally Posted By Jeeps-And-Guns: This could push me over the edge to make me finally break down and buy a MP5 clone. You should've done that already  Adding an FRT to one, especially suppressed, is awesome I've been running a leber lower but I'll buy one of these drop-in instantly to go into my 50 shades of grey franken-gun 
|
|
Originally Posted By stiglitz_actual: You should've done that already Adding an FRT to one, especially suppressed, is awesome I've been running a leber lower but I'll buy one of these drop-in instantly to go into my 50 shades of grey franken-gun https://distortion.io/i/PXL_20230214_163904693.jpg Originally Posted By stiglitz_actual: Originally Posted By Jeeps-And-Guns: This could push me over the edge to make me finally break down and buy a MP5 clone. You should've done that already Adding an FRT to one, especially suppressed, is awesome I've been running a leber lower but I'll buy one of these drop-in instantly to go into my 50 shades of grey franken-gun https://distortion.io/i/PXL_20230214_163904693.jpg Yep I'll convert all 3 of my Leberv2 guns to this is I'm allowed to order enough. Lol. |
"My friend, you would not tell with such high zest
To children ardent for some desperate glory,
The old Lie: Dulce et decorum est
Pro patria mori." -Wilfred Owen
To children ardent for some desperate glory,
The old Lie: Dulce et decorum est
Pro patria mori." -Wilfred Owen
|
Originally Posted By stiglitz_actual: You should've done that already Adding an FRT to one, especially suppressed, is awesome I've been running a leber lower but I'll buy one of these drop-in instantly to go into my 50 shades of grey franken-gun https://distortion.io/i/PXL_20230214_163904693.jpg So what clone on the market right now is the best "bang for the buck"? The best balance between quality and price. I am looking for the standard style MP5, not the short K model. I think it is called the MP5-A2. Doing a quick 60 second google search, basically the century AP5-N. Are these worth a shit? |
|
Originally Posted By s3igu2: Yes, because ARHK wasn't really built with any limitations due to the size of the MP5 drop in footprint all the parts are able to be extremely durable and purpose built for this exact assembly, for example all the FCG and ARC parts are dedicated for ARHK meaning they aren't just modified to work. Also the ARHK is even higher leverage then the super safety so the active reset mode will be very reliable even with alot of pressure on the trigger. It will be serviceable and I'm confident its the most durable trigger reset device out there by far due to the fact it was built from the ground up to survive 1000s of rounds of 308 in a g3. Yeah That’s what I’m talking about. I’ll buy 5 right now. |
|
Originally Posted By Jeeps-And-Guns: So what clone on the market right now is the best "bang for the buck"? The best balance between quality and price. I am looking for the standard style MP5, not the short K model. I think it is called the MP5-A2. Doing a quick 60 second google search, basically the century AP5-N. Are these worth a shit? Originally Posted By Jeeps-And-Guns: Originally Posted By stiglitz_actual: You should've done that already Adding an FRT to one, especially suppressed, is awesome I've been running a leber lower but I'll buy one of these drop-in instantly to go into my 50 shades of grey franken-gun https://distortion.io/i/PXL_20230214_163904693.jpg So what clone on the market right now is the best "bang for the buck"? The best balance between quality and price. I am looking for the standard style MP5, not the short K model. I think it is called the MP5-A2. Doing a quick 60 second google search, basically the century AP5-N. Are these worth a shit? I like the Century imported MKE Guns. I have two of the MKE guns (AP5 series), a full size and an SD. Both run like champs. Some of the early guns had issues but the recent ones seem gtg. I have not had to replace the ejectors or extractors in my guns, many will recommend this but I'd say shoot it first. The other gun I have is a Pakistani POF reverse stretch. Runs great but I'm at least the 3rd owner, so who knows what was done to it before. |
"My friend, you would not tell with such high zest
To children ardent for some desperate glory,
The old Lie: Dulce et decorum est
Pro patria mori." -Wilfred Owen
To children ardent for some desperate glory,
The old Lie: Dulce et decorum est
Pro patria mori." -Wilfred Owen
|
Originally Posted By s3igu2: Yes, because ARHK wasn't really built with any limitations due to the size of the MP5 drop in footprint all the parts are able to be extremely durable and purpose built for this exact assembly, for example all the FCG and ARC parts are dedicated for ARHK meaning they aren't just modified to work. Also the ARHK is even higher leverage then the super safety so the active reset mode will be very reliable even with alot of pressure on the trigger. It will be serviceable and I'm confident its the most durable trigger reset device out there by far due to the fact it was built from the ground up to survive 1000s of rounds of 308 in a g3. @s3igu2 - If you need someone with a HK21 to beta test and confirm it functions or doesn’t…send me a message. |
|
Originally Posted By cms81586: @s3igu2 - If you need someone with a HK21 to beta test and confirm it functions or doesn’t…send me a message. Originally Posted By cms81586: Originally Posted By s3igu2: Yes, because ARHK wasn't really built with any limitations due to the size of the MP5 drop in footprint all the parts are able to be extremely durable and purpose built for this exact assembly, for example all the FCG and ARC parts are dedicated for ARHK meaning they aren't just modified to work. Also the ARHK is even higher leverage then the super safety so the active reset mode will be very reliable even with alot of pressure on the trigger. It will be serviceable and I'm confident its the most durable trigger reset device out there by far due to the fact it was built from the ground up to survive 1000s of rounds of 308 in a g3. @s3igu2 - If you need someone with a HK21 to beta test and confirm it functions or doesn’t…send me a message. Ohhhh buddy. AS Designs should 100% send this guy a demo. He'll rock it. |
"My friend, you would not tell with such high zest
To children ardent for some desperate glory,
The old Lie: Dulce et decorum est
Pro patria mori." -Wilfred Owen
To children ardent for some desperate glory,
The old Lie: Dulce et decorum est
Pro patria mori." -Wilfred Owen
|
I ran 300 rounds through my AP5-P SBR with my Wolfman on it today without a single malfunction. I’ve put an 80 degree locking piece in and headspaced the bolt with HK rollers. Full AS Designs lower with ARC Fire and SSA-E trigger. You can’t feel the trigger reset when live firing. It ate American Eagle 147’s, HST 147’s, Ranger 147’s without issue. Didn’t want to completely mag dump it the first time out at the indoor range and put rounds in the ceiling. Waiting on my approval for my Strake 9. AS Designs complete lower with Geissele SD-E trigger 80 degree locking piece 509T-GR X2 B&T pic rail Trijicon mount B&T stock Phase 5 short grip MI rail Minidot Rail Scales Dead Air Wolfman on a 3 lug    January 27, 2026 |
Member
Joined:
Dec 2023
Posts:
7788
EE: 100% (7)
USA
|
I'm wildly behind on how HK parts interchange, so I'll just go on what I have. I have a PTR91, that came with a Navy polymer lower. Last year I installed a steel SEF lower. Will I be able to install this ARHK device in one of these lowers, and have it work? Assuming I have the relevant AS Designs parts, the ejector, all that. Then secondly, would I be able to use the ARHK in that same lower in an MP5 clone, but with a 9mm ejector? I don't have an MP5 yet. Is the ejector the only caliber specific part? Please do correct me if I'm off base, I'm way out of my depth with HK guns in comparison to ARs. |
|
You can use the MP5 housing on a G3, but you cannot use a G3 housing on the MP5 unless you cut it. It’s a 2 pin rear vs 1 pin rear housing. Change the ejector and with a normal 9X series gun you’re golden. You may need to change hammer springs * Personally I have a .308 hammer spring installed and it works for all calibers just fine. |
Member
Joined:
Dec 2023
Posts:
7796
EE: 100% (7)
USA
|
Originally Posted By HKH: You can use the MP5 housing on a G3, but you cannot use a G3 housing on the MP5 unless you cut it. It’s a 2 pin rear vs 1 pin rear housing. When you refer to a pin, is that the pin that would be at the bottom front of the lower? My SEF lower does not have a clip and pin.  " />
|
The voices in my head say I’m just being paranoid
Joined:
Oct 2013
Posts:
41574
EE: 100% (120)
KY, USA
|
Originally Posted By ELittlefield: When you refer to a pin, is that the pin that would be at the bottom front of the lower? My SEF lower does not have a clip and pin. https://i.imgur.com/mSAwt89.jpeg" target="_blank">https://i.imgur.com/mSAwt89.jpeg Originally Posted By ELittlefield: Originally Posted By HKH: You can use the MP5 housing on a G3, but you cannot use a G3 housing on the MP5 unless you cut it. It’s a 2 pin rear vs 1 pin rear housing. When you refer to a pin, is that the pin that would be at the bottom front of the lower? My SEF lower does not have a clip and pin. https://i.imgur.com/mSAwt89.jpeg" target="_blank">https://i.imgur.com/mSAwt89.jpeg It’s referring to the pins at the back of the housing, where the stock attaches. |
If you aren't representing Jesus in a way that makes people want to hang out with you, you're doing it wrong.
|
Originally Posted By Sputnik556: It’s referring to the pins at the back of the housing, where the stock attaches. Yes where stock attaches. Take a look at my edit as well on the hammer spring. Horrible artwork but here are the two You can cut the back off of the g3 to fit MP5/HK53  Note: mp5 is a picto housing and the g3 is an sef. Normal 9X series guns will not interchange between the two. Different geometry. I have no idea what sorcery ASD will come up with  but they may figure something out? For it to drop into factory German housings there may have to be two different versions…?…
|
Member
Joined:
Dec 2023
Posts:
7798
EE: 100% (7)
USA
|
Originally Posted By Sputnik556: It’s referring to the pins at the back of the housing, where the stock attaches. Originally Posted By Sputnik556: Originally Posted By ELittlefield: Originally Posted By HKH: You can use the MP5 housing on a G3, but you cannot use a G3 housing on the MP5 unless you cut it. It’s a 2 pin rear vs 1 pin rear housing. When you refer to a pin, is that the pin that would be at the bottom front of the lower? My SEF lower does not have a clip and pin. https://i.imgur.com/mSAwt89.jpeg" target="_blank">https://i.imgur.com/mSAwt89.jpeg It’s referring to the pins at the back of the housing, where the stock attaches. Oh I see. Okay. This is the polymer lower that came with my PTR91. It looks identical to this lower that's advertised for a PTR 9mm. Does PTR use a common lower for both calibers?  " /> " />https://www.midwestgunworks.com/page/mgwi/prod/ac-010031?srsltid=AfmBOoq80p8-BU1eGtM5-eOe-m8C-HvZWcuZISw0BFhMKNKVYSmZSsna |
|
Originally Posted By ELittlefield: Oh I see. Okay. This is the polymer lower that came with my PTR91. It looks identical to this lower that's advertised for a PTR 9mm. Does PTR use a common lower for both calibers? https://i.imgur.com/HjxQr3m.jpeg" target="_blank">https://i.imgur.com/HjxQr3m.jpeg https://i.imgur.com/OGRFu6f.jpeg" target="_blank">https://i.imgur.com/OGRFu6f.jpeg https://www.midwestgunworks.com/page/mgwi/prod/ac-010031?srsltid=AfmBOoq80p8-BU1eGtM5-eOe-m8C-HvZWcuZISw0BFhMKNKVYSmZSsna No idea on PTR but see the above German housings. For the MP5 it has that “L” cut not squared off with a hole. Either will work I prefer the OG German design, never had a problem popping the pin even with gloves. Some of the squared with holes I’ve seen guys wish they had a hammer with them at times lol |
Member
Joined:
Dec 2022
Posts:
7566
EE: 0% (0)
OK, USA
|
Originally Posted By s3igu2: Yes, because ARHK wasn't really built with any limitations due to the size of the MP5 drop in footprint all the parts are able to be extremely durable and purpose built for this exact assembly, for example all the FCG and ARC parts are dedicated for ARHK meaning they aren't just modified to work. Also the ARHK is even higher leverage then the super safety so the active reset mode will be very reliable even with alot of pressure on the trigger. It will be serviceable and I'm confident its the most durable trigger reset device out there by far due to the fact it was built from the ground up to survive 1000s of rounds of 308 in a g3. Originally Posted By s3igu2: Originally Posted By lil_Sig: Are they reliable, projected to have a long service life and be serviceable by the end user? Yes, because ARHK wasn't really built with any limitations due to the size of the MP5 drop in footprint all the parts are able to be extremely durable and purpose built for this exact assembly, for example all the FCG and ARC parts are dedicated for ARHK meaning they aren't just modified to work. Also the ARHK is even higher leverage then the super safety so the active reset mode will be very reliable even with alot of pressure on the trigger. It will be serviceable and I'm confident its the most durable trigger reset device out there by far due to the fact it was built from the ground up to survive 1000s of rounds of 308 in a g3.  Pulp Fiction Shit Negro, That's All You Had to Say - Quotes\Clip |
AS Designs ARHK (Page 2 of 14)
AR Sponsor