Name: Strike Industries AR Enhanced Castle Nut and Extended End Plate
Brand: Strike Industries
SKU: 3Q-CAN-SARCN
Price: 57.95 USD
Availability: InStock
Rating: 4.7 (60 reviews)

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Strike Industries AR Receiver Enhanced Castle Nut with Extended QD Endplate, Black, SI-AR-ECN&EEP-BK

Strike Industries AR QD Enhanced Castle Nut and Extended End Plate, Fde, SI-AR-ECN&EEP-FDE

Strike Industries AR Receiver Enhanced Castle Nut with Extended QD Endplate, Red, SI-AR-ECN&EEP-RED

Strike Industries AR Receiver Enhanced Castle Nut with Extended QD Endplate, Blue, SI-AR-ECN&EEP-BLU

Strike Industries AR Receiver Enhanced Castle Nut with Extended QD Endplate, Black, SI-AR-ECN&EEP-BK

Strike Industries AR QD Enhanced Castle Nut and Extended End Plate, Fde, SI-AR-ECN&EEP-FDE

Strike Industries AR Receiver Enhanced Castle Nut with Extended QD Endplate, Red, SI-AR-ECN&EEP-RED

Strike Industries AR Receiver Enhanced Castle Nut with Extended QD Endplate, Blue, SI-AR-ECN&EEP-BLU

Strike Industries AR Receiver Enhanced Castle Nut with Extended QD Endplate, Black, SI-AR-ECN&EEP-BK

Government Export Restriction This item may be regulated for export by the U.S. Department of State or the U.S. Department of Commerce. Please see our Export Policy prior to placing your order.

Product Videos

Strike Industries AR Enhanced Castle Nut & Extended End Plate Installlation 01:36

Questions & Answers

Anyone know what the set screw size is? I lost mine since I didn't Loctite it and it fell out while shooting. Expert Answer

Unfortunately we do not have the set screw size, you would have to contact the manufacturer for that part. You can reach them here: https://www.strikeindustries.com/shop/product-tech-support

by Ethan C., Gear Expert, May 8, 2019

See 2 More Answers

Will this fit AR10 platform? Expert Answer

Yes, the Strike Industries AR Enhanced Castle Nut and Extended End Plate is compatible with AR10/DPMS pattern rifles as well as AR15 pattern rifles.

by Ethan, Gear Expert, October 30, 2024

View All Q&A You Have a Question? Ask!

Customer Reviews

Helpful Positive Review My thoughts on the Strike Industries Enhanced Castle Nut and Extend Plate all good. by Kevin, June 19, 2021

Looks great, easy to install, and works well with the quick detach sling. Also if you don't like the castle nut but want the extended end plate it works with a regular castle nut. Same for if you like the castle nut but want to keep your existing end...
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2/2 found this helpful

Helpful Positive Review Strike Industries Castle Nut w/ Extended QD Endplate by Irish, August 12, 2017

This is a fantastic product to add flash to your AR. It was very easy to install, and can be tightened down with a normal armorers wrench. The QD endplate allows for easy QD sling attachment right below the buffer tube extension. Additionally, the QD...
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11/12 found this helpful

Helpful Positive Review Best endplate, dumb nut. by Ur Mum, Verified Owner, December 14, 2022

This and their more expensive version with the steel QD tube are the best endplates for the AR, IMO. Having a sling QD abrading your thumb web gets annoying pretty quick and these extended end plates are the perfect answer. I put these on all my buil...
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4/4 found this helpful

Helpful Positive Review Missing Piece by Chris G, Verified Owner, July 13, 2021

I had been looking for the Strike Industries Enhanced Castle nut to finish my build and Optics Planet finally got it in stock so I snatched it up. Not only does this look great it also covers the threads on the Strike industries buffer tube for those...
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2/2 found this helpful

Helpful Positive Review Great Build Part by J, Verified Owner, August 7, 2022

I have installed these on my last two builds, and I really do prefer them. The extended endplate moves the QD point further away from the pistol grip, which keeps the sling off the back of my hand. The extended castle nut covers the exposed threads o...
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2/2 found this helpful

Helpful Positive Review QD Castle Nut by Justin, Verified Owner, April 15, 2022

It is perfect. It already had a spot for a sling attachment, it is great quality and I have not had any issues with this *knock on wood*. I like the fact that the way this is put on, it doesn’t allow for the spring to go flying out.

2/2 found this helpful

Read All 60 Reviews

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In Stock

4 Models Available

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Color

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Strike Industries AR Enhanced Castle Nut and Extended End Plate, Black, One Size, SI-AR-ECN&EEP-BK

Color: Black

Code: 3Q-CAN-SARCN-SI-AR-ECN-EEP-BK

MPN: SI-AR-ECN&EEP-BK

UPC: 708747545548

List: ~~$60.95~~Save $3.00

$57.95

Strike Industries AR Enhanced Castle Nut and Extended End Plate, FDE, One Size, SI-AR-ECN&EEP-FDE

Color: Flat Dark Earth

Code: 3Q-CAN-SARCN-SI-AR-ECN-EEP-FDE

MPN: SI-AR-ECN&EEP-FDE

UPC: 708747547078

8% Bonus Bucks

List: ~~$62.95~~Save $3.00

$59.95

Strike Industries AR Enhanced Castle Nut and Extended End Plate, Red, One Size, SI-AR-ECN&EEP-RED

Color: Red

Code: 3Q-CAN-SARCN-SI-AR-ECN-EEP-RED

MPN: SI-AR-ECN&EEP-RED

UPC: 708747545609

List: ~~$62.95~~Save $3.00

$59.95

Strike Industries AR Enhanced Castle Nut and Extended End Plate, Blue, One Size, SI-AR-ECN&EEP-BLU

Color: Blue

Code: 3Q-CAN-SARCN-SI-AR-ECN-EEP-BLU

MPN: SI-AR-ECN&EEP-BLU

UPC: 708747545616

List: ~~$62.95~~Save $3.00

$59.95

Buy Together and Save

Strike Industries Ultra Light Pivot/Takedown Pins, Blue, One Size, SI-AR-UL-EPTP-BLU

List: ~~$77.90~~Save $4.00$73.90

Receive $1.48 OP Bucks

Strike Industries AR Enhanced Castle Nut and Extended End Plate, Black, One Size, SI-AR-ECN&EEP-BK

Strike Industries Ultra Light Pivot/Takedown Pins, Blue, One Size, SI-AR-UL-EPTP-BLU

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Expert Advice Request for Quote Price Match

Product Info for Strike Industries AR Enhanced Castle Nut and Extended End Plate

The Strike Industries Enhanced Castle Nut and End Plate stands out from the competition in both aesthetics and function. These AR15 Lower Parts by Strike Industries feature a steel castle nut that has been lengthened to match the extended end plate to provide additional support of the receiver extension's threaded area. The extended end plate of the Strike Industries Caste Nut and End Plate Combo includes a quick-detach sling swivel mount that is pushed back and away from the webbing of your primary hand to allow firearm manipulation in tight spaces. Easily drop in and install this Strike Industries Quick-Detach Castle Nut and End Plate on your AR platform rifle!

California`s Proposition 65

Specifications for Strike Industries AR Enhanced Castle Nut and Extended End Plate:

Manufacturer:	Strike Industries
Condition:	New
Quantity:	1
Gun Make:	AR Platform

Features of Strike Industries AR Enhanced Castle Nut and Extended End Plate

Aesthetic upgrade
Centrally placed QD for right or left hand sling use
Easy drop in installation
Simplified installation of takedown pin and detent via set screw.
Compared to a standard castle nut and end plate, the fully collapsed position, with most stocks, is eliminated in order to create proper clearance for the QD socket.

Package Contents:

Strike Industries AR Enhanced Castle Nut and Extended End Plate
1x Enhanced Castle Nut
1x Enhanced End Plate
1x Warning card

Strike Industries AR Enhanced Castle Nut and Extended End Plate Orderable Models

List of Orderable Models

Strike Industries AR Enhanced Castle Nut and Extended End Plate, Black, One Size, SI-AR-ECN&EEP-BK , MPN: SI-AR-ECN&EEP-BK , UPC: 708747545548 , Code: 3Q-CAN-SARCN-SI-AR-ECN-EEP-BK

Strike Industries AR Enhanced Castle Nut and Extended End Plate, FDE, One Size, SI-AR-ECN&EEP-FDE , MPN: SI-AR-ECN&EEP-FDE , UPC: 708747547078 , Code: 3Q-CAN-SARCN-SI-AR-ECN-EEP-FDE

Strike Industries AR Enhanced Castle Nut and Extended End Plate, Red, One Size, SI-AR-ECN&EEP-RED , MPN: SI-AR-ECN&EEP-RED , UPC: 708747545609 , Code: 3Q-CAN-SARCN-SI-AR-ECN-EEP-RED

Strike Industries AR Enhanced Castle Nut and Extended End Plate, Blue, One Size, SI-AR-ECN&EEP-BLU , MPN: SI-AR-ECN&EEP-BLU , UPC: 708747545616 , Code: 3Q-CAN-SARCN-SI-AR-ECN-EEP-BLU

Strike Industries AR Enhanced Castle Nut and Extended End Plate Unavailable & Discontinued Models

List of Unorderable Models

Strike Industries AR Receiver Enhanced Castle Nut with Extended QD Endplate in Grey, Gray, SI-AR-ECN&EEP-GY , MPN: SI-AR-ECN&EEP-GY , UPC: 708747545623 , Code: 3Q-CAN-SARCN-SI-AR-ECN-EEP-GY