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HK417/MR762 Gen 3HK Folding Stock Adapter
HK417/MR762 Gen 3HK Folding Stock Adapter
HK417/MR762 Gen 3HK Folding Stock Adapter
HK417/MR762 Gen 3HK Folding Stock Adapter
HK417/MR762 Gen 3HK Folding Stock Adapter
HK417/MR762 Gen 3HK Folding Stock Adapter
HK417/MR762 Gen 3HK Folding Stock Adapter
HK417/MR762 Gen 3HK Folding Stock Adapter
HK417/MR762 Gen 3HK Folding Stock Adapter
HK417/MR762 Gen 3HK Folding Stock Adapter
HK417/MR762 Gen 3HK Folding Stock Adapter
HK417/MR762 Gen 3HK Folding Stock Adapter
HK417/MR762 Gen 3HK Folding Stock Adapter
HK417/MR762 Gen 3HK Folding Stock Adapter
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LAW TACTICAL LLC - HK417/MR762 Gen 3HK Folding Stock Adapter

2 Reviews
HK417/MR762 Gen 3HK Folding Stock Adapter
Brownells #
100033760
MFR #
99350
UPC
728795099350
$399.99
Coupon Code
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Specifications
Material:
Steel
Finish:
Matte
Color:
Black
Make Model Fit:
Heckler & Koch.417;Heckler & Koch.MR308;Heckler & Koch.MR762
Restriction
Restricted Part:
Yes
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Description

AR-15 fans rejoiced with the introduction of the Law Tactical Gen 3-M folding-stock adapter, which allowed them to fold the buffer-tube extension along the side of the AR receiver for compact storage and transport. Now, with the Law Tactical Gen 3HK folding-stock adapter, users of any rifle equipped with Heckler & Koch's proprietary receiver extension can now take advantage of the same features. Each Law Tactical Gen 3HK folding-stock adapter is constructed from steel and features a durable DLC finish. The adapter can be used on the HK417, MR762, MR308 and the G28, as well as any other gun featuring the same receiver extension. To use, simply push the single-button release to fold the stock. To fire, move the stock back to its full-length configuration, and the adapter automatically locks into place.

See all of our AR15s and AR15 parts here.

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HK417/MR762 GEN3 HK FOLDING STOCK ADAPTER REVIEWS

3.5
2 Reviews
5 Stars
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4 Stars
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5
Perfect
Purchased the Law tactical adapter for my MR762 from Brownells and it shipped fast. The instructions for installation were clear and easy to understand. This model only works for the HK 417/MR762. I recommend this if you have one of those rifles.
by EB on May 03, 2021
Was this review helpful? 4
2
Not impressed
I wanted this to work out so bad. In the end it's too heavy and it will only partially fold due to the QD socket on the folding side of the end plate. When you try to fold it the qd socket bangs into the law tactical housing. I don't want to lose the functionality of the end plate since that's where I attach my sling. After spending $400 on this, I don't want to throw away the $175 end plate that came with my $5,000 rifle, and spend more money on this just to make it work. I took this on and off 4 times trying to get it to close, and scratched my buffer tube up pretty good in the process. Law tactical made this exclusively for the MR 762a4,, so why didn't they keep in mind that the unit will not fold when using OEM parts. This is wasted money in my opinion
by N G. on October 16, 2026
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