CNF - Castle Nut, Forward Controls Design

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Retail Price:$20.00
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Part Number:FCD-CNF

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The CNF (Castle Nut, Forward Controls) is based on the TDP spec castle nut, with couple of changes.

1. The staking notches angle has been changed from 45 to 30 degrees, this results in longer (25% longer than TDP spec) and deeper notches than found on traditional TDP castle nuts.
2. The number of staking notches increased from 3 to 4, spaced equally on the CNF.  The castle nut is to be staked in two places, we're not advocating staking in more than two places, CNF's 4 staking notches mean that, at all times, 3 will be visible and available for staking, it simply gives the user more staking location options.
3. Coarse serrations on the wrench side of the nut, a single use feature to make it easier while rotating the CNF towards the end plate.

It is our opinion that a castle nut should be securely staked, as it was intended per the TDP/milspec.  The CNF's longer and deeper notch reinforces the belief, that once installed and staked, it will not loosen without deliberate action at the workbench.  While some things like slings and optics might be suitable for quick detach configurations, your receiver extension isn't one of them.  CNF is a continuation and evolution in that direction.

CNF is billet machined in 4140 PH steel, and black nitrided.  As with everything Forward Controls Design produces, it is proudly made in the USA. 

Be sure to watch the above video for more information on the product as well as installation tips.
5 Stars
Looks very nice, high quality. Good upgrade to a standard caste nut. Shipped fast. Would purchase again
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Reviewed by:  from Oregon. on 1/29/2022

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