Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Enjoy free shipping during the holidays! Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC and to all U.S. Military APO/FPO/DPO addresses.

Enjoy Our Extended FREE RETURNS

We want to ensure that making a return is as easy as possible! With our Hassle-Free, Extended Holiday Returns, eligible orders placed from November 12, 2025 on will benefit from an extended return deadline (January 13, 2026 or 30 days after receipt of your order - whichever is later). We'll even cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
JMac Customs 1913 Adapter for MP5K and Clones
$99.95 $89.96 Save 10%
View Product
Compare (0)
Most Helpful Positive Review Mp5k picatinny conversion
Great product concept ..it gives a mp5k platform with better stock options..made of product is well made.finishing is great ..however i need slight modification to the 2 holes to make it git my turkish AP5. So i did not give this 5 stars..i fo not know if HK branded guns need any modifications
Most Helpful Negative Review Look elsewhere
Interesting how the lowest rated reviews are missing - now Oct 2024. Hmmm. As another reviewer in late Aug. 2024 stated, the holes in this 1913 adapter did not line up with my HK SP5K. Holes simply are not lined up on THEIR PART. Visibly off by a good bit. I contacted JMAC. They promptly referred me...
Read More...
Show
Sort by
Filter by

Great fit for a 1913 pic option on your MP5K

by MP5K, Verified Owner from TX, United States Written on October 28, 2025
Great fit!! Its pretty tight to get the pins in, i used a rubber mallet. No wobble, worth the struggle
Would recommend: Yes
0 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Nice Adapter

by Sir Fuddington the Last, Verified Owner from WV, United States Written on October 24, 2025
Works great on the AP5-P. Nice finish and the receiver holes line up perfect.
Would recommend: Yes
0 of 1 found the following review helpful.
Was it helpful to you? Yes | No

Didn’t fit

by Kendigg, Verified Owner from NH, United States Written on March 21, 2025
Holes did not line up for installation on Zenith ZF5k.
Pros:
  • None
Cons:
  • out of alignment
  • Did not actually fit
Would recommend: No
2 of 2 found the following review helpful.
Was it helpful to you? Yes | No

Great product

by Joe, Verified Owner from KS, United States Written on November 11, 2024
Great product and very solid, just had a little bit of work to get it into place on a Century Arms AP5 but once installed it is set in place and won't budge. If you want something thats cheap and works well then this is it.
Would recommend: Yes
0 of 3 found the following review helpful.
Was it helpful to you? Yes | No

great quality

by Paul, Verified Owner from MO, United States Written on November 9, 2024
This is just what I needed for my mp5 to run different folders. Did not dissapoint
Would recommend: Yes
1 of 4 found the following review helpful.
Was it helpful to you? Yes | No

Jmac sp5k adapter

by Abc, Verified Owner from WI, United States Written on August 29, 2024
Looks nice but the holes need to be adjusted. I have an hk sp5k and not a clone. The Holes did not line up. I had to grind the holes to make it fit. I should not have to do additional work to make it fit for a quality product. Don't buy if u don't have a dremel or plan on making adjustments.
Pros:
  • Looks nice
Cons:
  • Holes do not line up. Additional work is needed to make it fit.
Would recommend: No
7 of 7 found the following review helpful.
Was it helpful to you? Yes | No

JMAC IS SOLID GEAR

by TicoTom, Verified Owner from Costa Rica Written on March 15, 2024
Another piece of quality made JMAC gear. I recommend it but it's not cheap. I highly recommend Optics Planet as well - OUTSTANDING product selection and service!
Would recommend: Yes
1 of 9 found the following review helpful.
Was it helpful to you? Yes | No

Nice Snug Fit !!!

by MLars, Verified Owner from UT, United States Written on November 15, 2022
I received this item along with the Jmac brace. All the components of the system were of the highest quality. This adapter was well finished and Fit very snug into the receiver so much that one the pins had to be tapped in. Some may view this as a negative but I'd rather have it that way than loose.
Pros:
  • Great Fit
Cons:
  • May not allow push pin takedown without tools.
Would recommend: Yes
2 of 9 found the following review helpful.
Was it helpful to you? Yes | No
There are no reviews that match your criteria. Would you like to review this product?