(PREORDER 4/7) AR MP5-K Lower - H&K SP5K/SP5K-PDW - Full Kit
PREORDER PRODUCT - ETA FOR SHIPPING IS 4/7/25
We are now offering the ARMP5v3 H&K K Lower fully machined, assembled, and plug and play as a kit! This kit includes:
ARMP5v3 H&K K Lower
CNC Billet machined from 7075-T6 Aluminum
Type III Hardcoat Anodized - Black
Markings laser engraved for SEMI - SUPER - SAFE positions (if you do not want the markings, please mention it in your order comments or email us with your order number and we will set aside a few with no markings)
This version fits H&K SP5K/SP5K-PDW. Please see our other listings for any model not listed. This does not fit Century, PTR, MAC, or Zenith!
Custom Ejector Lever - 4140 Steel, Heat Treated, Nitride Coating
Custom Ejector Lever Nut/Bushing (4140) and 3MM Bolt
AS Designs Super Safety - CPM-10V Kit (Curved Trigger)
Mil-spec FCG (hammer and springs)
Anti-walk Pins
AR Grip (Mil-spec included in price, we will offer upgrade options when we are nearing shipping)
Slip Trip V3m or V4 - 7075-T6 Aluminum
Test fit and fired for 10 semi rounds and 30 rounds super safe on our SP5K
You don’t need to add anything, this lower comes fully assembled with all parts. You will simply add the slip trip into your upper and pin the new lower on and enjoy a super safe MP5! Note: We cannot guarantee perfect fitment to every single host, tolerance stacking is always a concern, but we have done everything possible to ensure proper fitment.
We currently specialize these lowers for use with the Hoffman Tactical Super Safety. If you plan to not use the Super Safety and just use an upgraded AR trigger (i.e. Geissele or similar) with your MP5, we would suggest purchasing from Lee Sporting HERE. Their LS5 product is designed for that use and is high quality.
We do not ship to the following states: FL, CA, CO (Boulder County and Broomfield), CT, DE, HI, IL, MD, MN, NJ, NY, RI, and VA.
The ARMP5v3 was created by s3igu2 and his approval was given for our product. Please visit his Twitter for updates, other designs, and to support his work: https://x.com/s3igu2
Credit also goes to UberPoor for his original work on the ARMP5, please visit his Twitter for updates, other designs, and to support his work: https://x.com/UberPoor/
PREORDER PRODUCT - ETA FOR SHIPPING IS 4/7/25
We are now offering the ARMP5v3 H&K K Lower fully machined, assembled, and plug and play as a kit! This kit includes:
ARMP5v3 H&K K Lower
CNC Billet machined from 7075-T6 Aluminum
Type III Hardcoat Anodized - Black
Markings laser engraved for SEMI - SUPER - SAFE positions (if you do not want the markings, please mention it in your order comments or email us with your order number and we will set aside a few with no markings)
This version fits H&K SP5K/SP5K-PDW. Please see our other listings for any model not listed. This does not fit Century, PTR, MAC, or Zenith!
Custom Ejector Lever - 4140 Steel, Heat Treated, Nitride Coating
Custom Ejector Lever Nut/Bushing (4140) and 3MM Bolt
AS Designs Super Safety - CPM-10V Kit (Curved Trigger)
Mil-spec FCG (hammer and springs)
Anti-walk Pins
AR Grip (Mil-spec included in price, we will offer upgrade options when we are nearing shipping)
Slip Trip V3m or V4 - 7075-T6 Aluminum
Test fit and fired for 10 semi rounds and 30 rounds super safe on our SP5K
You don’t need to add anything, this lower comes fully assembled with all parts. You will simply add the slip trip into your upper and pin the new lower on and enjoy a super safe MP5! Note: We cannot guarantee perfect fitment to every single host, tolerance stacking is always a concern, but we have done everything possible to ensure proper fitment.
We currently specialize these lowers for use with the Hoffman Tactical Super Safety. If you plan to not use the Super Safety and just use an upgraded AR trigger (i.e. Geissele or similar) with your MP5, we would suggest purchasing from Lee Sporting HERE. Their LS5 product is designed for that use and is high quality.
We do not ship to the following states: FL, CA, CO (Boulder County and Broomfield), CT, DE, HI, IL, MD, MN, NJ, NY, RI, and VA.
The ARMP5v3 was created by s3igu2 and his approval was given for our product. Please visit his Twitter for updates, other designs, and to support his work: https://x.com/s3igu2
Credit also goes to UberPoor for his original work on the ARMP5, please visit his Twitter for updates, other designs, and to support his work: https://x.com/UberPoor/
PREORDER PRODUCT - ETA FOR SHIPPING IS 4/7/25
We are now offering the ARMP5v3 H&K K Lower fully machined, assembled, and plug and play as a kit! This kit includes:
ARMP5v3 H&K K Lower
CNC Billet machined from 7075-T6 Aluminum
Type III Hardcoat Anodized - Black
Markings laser engraved for SEMI - SUPER - SAFE positions (if you do not want the markings, please mention it in your order comments or email us with your order number and we will set aside a few with no markings)
This version fits H&K SP5K/SP5K-PDW. Please see our other listings for any model not listed. This does not fit Century, PTR, MAC, or Zenith!
Custom Ejector Lever - 4140 Steel, Heat Treated, Nitride Coating
Custom Ejector Lever Nut/Bushing (4140) and 3MM Bolt
AS Designs Super Safety - CPM-10V Kit (Curved Trigger)
Mil-spec FCG (hammer and springs)
Anti-walk Pins
AR Grip (Mil-spec included in price, we will offer upgrade options when we are nearing shipping)
Slip Trip V3m or V4 - 7075-T6 Aluminum
Test fit and fired for 10 semi rounds and 30 rounds super safe on our SP5K
You don’t need to add anything, this lower comes fully assembled with all parts. You will simply add the slip trip into your upper and pin the new lower on and enjoy a super safe MP5! Note: We cannot guarantee perfect fitment to every single host, tolerance stacking is always a concern, but we have done everything possible to ensure proper fitment.
We currently specialize these lowers for use with the Hoffman Tactical Super Safety. If you plan to not use the Super Safety and just use an upgraded AR trigger (i.e. Geissele or similar) with your MP5, we would suggest purchasing from Lee Sporting HERE. Their LS5 product is designed for that use and is high quality.
We do not ship to the following states: FL, CA, CO (Boulder County and Broomfield), CT, DE, HI, IL, MD, MN, NJ, NY, RI, and VA.
The ARMP5v3 was created by s3igu2 and his approval was given for our product. Please visit his Twitter for updates, other designs, and to support his work: https://x.com/s3igu2
Credit also goes to UberPoor for his original work on the ARMP5, please visit his Twitter for updates, other designs, and to support his work: https://x.com/UberPoor/