How to Order
FAQ
My Account
Contact Us
Blog
Affiliate Program
Login
Register
home
Shopping Cart
0
Items -
$0
0
Items
Toggle navigation
Shop Services
Tools
Parts
Barrels
Muzzle Devices
Knights Armament
Knights Armament Parts
Knights Armament Services
Knights Armament Rifles / Uppers
Knights Suppressors
Knights Muzzle Devices
Knights Armament Barrels
Lewis Machine and Tool
Lewis Machine and Tool Parts
Lewis Machine and Tool Services
M203
DWM Custom Shop
Rifles
Hodge Defense
Hodge Complete Rifles
Hodge Upper Parts
Hodge Lower Parts
Hodge Barrels
Clear Ano
Home
Knights Armament
Knights Armament Parts
KAC ARCA Rail Adapters
Zoom in on Image(s)
Thumbnail
Thumbnail
Email a friend
KAC ARCA Rail Adapters
5/5 rating
5
Review(s)
5
5
5/5 rating
1
5
Write a Review
Your Price:
$125.00
Part Number:
KAC-ARCA
Availability:
In Stock.
Choose Options
Version
*
Version
Short URX (-$65.00)
13" URX 4 (SR15 Rail PN 32304-1300)
13" URX 6 (PN 115239-1300)
13" URX 6 BLEM LASER ENGRAVING (-$25.00)
13.5" URX (SR25 Rail PN 31887-1350)
14.5" URX (SR15 Rail PN 32304-1450 and SR25 Rail PN 31887-1500)
19" URX (SR25 Rail PN 114611-1900) (+$25.00)
Put me on the Waiting List
Put me on the Waiting List
Quantity
+
-
Add to Cart
Submit
product tabs
Description
Customer Reviews
Bolt on rail adapters that turn the bottom 45* sections of your KAC URX rail into ACRA. These are helpful for mounting bipods and tripods that are ACRA compatible.
Please note that each version of the adapters only work with the rail specified.
These are machined from 6061 aluminum and type III hardcoat anodized.
We recommend torqueing the screws to a maximum of 15 inch lbs
.
The SHORT version measure roughly 3.25" and can be mounted virtually anywhere along the bottom of your KAC URX rail.
Rating Snapshot
Select a row below to filter reviews.
5 Stars
4
4 Stars
1
3 Stars
0
2 Stars
0
1 Stars
0
4 Stars
Clear Filter
?
Average Customer Ratings
4.8
5/5 rating
Outstanding
Writing this review I am still slightly baffled at how DWM came up with these and how well they were executed. These are without a doubt the best way to put ARCA on your SR. They completely blow away arca plates for comfort, weight, and functionality. Install is super easy and the utilization of the half slots is brilliant. The base of the handguard and the rails create a flat surface that is both comfortable in the hand and awesome for shooting off barricades. Quite literally this is the best $125 I have ever spent on a gun a accessory. Well done D Wilson, well done!
Did you find this helpful?
4 of 4
Found Helpful
Reviewed by:
Matt
from VA on 9/9/2024
5
5
5/5 rating
Great Product
Bought to see if they would Fit on my BCM MCMR rail. At first the rail was just to thin for my A419 arca clamp due to the handguard being slightly smaller in diameter, but after shimming the underside of the rails where they attach they work phenomenally and both look and feel great.
Did you find this helpful?
Reviewed by:
(Verified Buyer)
Alex Kuculyn
from Panama City on 6/1/2026
5
5
5/5 rating
URX4 13 - Great product!
Works perfectly on my URX4 13. If anyone else is wondering it does fit the 31885-1300 part number as well. Dave I hope you come out with a short version that sits just in front of the mag well I could use on my other URX4 13 and my 10.75 that I use for night hunting!
Did you find this helpful?
Reviewed by:
Austin Boyd
from Poquoson on 7/23/2025
5
5
5/5 rating
Great rail one flaw
These arca rails are great function and fit. I love the sleek profile and the ability to use the bottom m lok. Here’s what needs improvement. Rail could use pins on the bottom for rrs lock compatibility, not really necessary but would be nice. The mounting hardware is the real problem. Tiny hex wrench head needs to be sized up. I stripped one just attempting to remove the rail and had to have my gunsmith extract the screw. Hex size needs to be bigger D Wilson and you’d have a perfect product.
Did you find this helpful?
0 of 1
Found Helpful
Reviewed by:
(Verified Buyer)
Stephen Roe
from USA on 4/1/2025
4
4
5/5 rating
Very Thoughtfully Designed
This fits like original equipment. Excellent addition to the 16" SR-25 PC.
Did you find this helpful?
Reviewed by:
(Verified Buyer)
Yared Hailemichael
from Atlanta, GA on 11/12/2024
5
5
Related Items
Quick View
Knights Armament URX QD Socket tool
$25.00
In Stock.
Free Shipping.
(0)
Add To Cart
Add to Cart
Quick View
Knights Armament 14.5 Mod 2 upper
$2,099.99
Out of Stock.
(0)
Quick View
Knight's Armament Suppressor Shroud, 7.62 CRS - FDE
$224.44
In Stock.
(0)
Add To Cart
Add to Cart
Quick View
Knights Armament 5.56mm QDC MAMS Muzzle Brake Kit - PN 30168
$375.00
Out of Stock.
(0)
Add To Cart
Add to Cart
Quick View
Knight's Armament SR-25 Gas Block Suppressor Locating Pin - KAC PN 20380
$20.04
In Stock.
(0)
Add To Cart
Add to Cart
Quick View
Knight’s Armament SR25 RAS Barrel Nut - PN 91407
$57.56
In Stock.
(0)
Add To Cart
Add to Cart
category breadcrumbs
Browse Similar Items
Knights Armament
Knights Armament
>
Knights Armament Rifles / Uppers
Parts
Recently Viewed Items
Turn History Off
[history_item_name]
[ITEMPRICE]
[ITEMPRICE]
Original price
[ITEMSALEPRICE]
Sale
Clear
×
Menu Links
Categories