HK Pistol Parts
- Accessories
- Magazines
HK VP
- HK VP9
- HK VP9SK
- HK VP40
MP5
- HK 94
- MP5 SD
- MP5 Clones
HK .22lr Rifles
- HK MP5
- HK 416
- GSG522
MP5K
- SP89, MP5K-N
- HK SP5K
MP5 40
- MP5 10
- MP5 .357
B&T
- Brugger & Thomet
HK 91
- HK G3
- PTR 91
- CETME, C308
- G3K, PTR PDW
HK 93
- HK 33
- HK 53
- Vector Arms V53 V93
- C93
HK MR556
- HK 416
- HK 416A5
- HK CR556
HK MR762
- HK 417
- HK MR762 LR
HK G36
- HK G36K
- HK G36C
- HK SL8
HK USC Carbine
- HK UMP 45
- HK UMP 40
- HK UMP 9mm
PSG1
- MSG90
HK 21
- HK 21E
- HK 23E
- HK 11
HK MP7, MP7A1
HK Apparel
- Shirts
- Hats
HK Aficionado
- Posters
- Stickers
- Calendars
HK Knives
- Benchmade
HK 300
- HK G41
- HK SL6
Recently Added Products
Glock Parts
Sig Parts
AR-15, AK-47
Clipped & Pinned Services
Pre-owned HK Products
Emergency Preparedness
Gift Certificates

HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28

SKU: HKP-01845
Brand: USA

HK, Walther, Umarex 416, Colt M4 or MP5-A5 .22 Barrel Adapter With Thread Protector - M8 X.75 to 1/2 X 28

The finest thread adapter available that converts the factory thread pitch to 1/2 X28. Each adapter comes with a new O-ring (red) & built in wrench slot. This custom adapter allows you to simply unscrew the stock flash hider and quickly and effortlessly convert the barrel to 1/2X28 threads. This adapter can be mounted permanently & provides the perfect index without any loss or deviation of zero.This is the lowest profile and factory correct mount that you can get.

This is the one & only adapter made for the Umarex HK 416D & Colt M4 & MP5-A5 .22 style rifles. Each adapter comes with a fitted thread protector for protecting the exposed 1/2 X 28 thread when a flash hider, comp or suppressor is not in use. This is a must have for those that want to use a sound suppressor or other muzzle device. This part is made in the US and is only available here at HKParts.net.

Fits all of the following:
  • HK 416 .22 LR Rifles & Pistols
  • Colt M4 .22 LR Rifles
  • HK MP5 .22 LR Rifles
  • Other Walther/HK/Umarex applications

Note:Not for use with the GSG-5 as the GSG5 models have 1/4 X 28 threads

Technical Note: The O-ring on the adapter takes a lot of wear as you screw and unscrew different devices. We highly recommend purchasing spare O-rings for it, These are found in the related products section below.
Origin: USA
Price: $29.95$45.0033% OFF
In Stock
Save to my Wish List
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
HK, Walther, Colt, 22LR Barrel Adapter - 1/2 X 28
(Click to see larger image and other views)
Previous Item   Next Item
Related Items Others Found Useful.
Check the check boxes next to the additional products that you would like to add to the shopping cart, then click on the "Add to Cart" button above. A check box is not shown if a product requires that you select an option or fill out a field. () indicates a required accessory.

Product Reviews

Write your own review


"Colt M4 Barrel Adapter"

Steven Russo on 12/21/2011 11:28:02 AMVerified

Overall Product Rating:


Great product, great delivery service.


"22 LR BARREL ADAPTERS"

FEDERICO GONZALEZ on 5/20/2011 2:01:28 AM

Overall Product Rating:


This is the second pair of adapters I order. They fit perfectly. Just a reminder, don't forget to transfer the O RING. And last but not least, don't overtighten. (Remember, to dissasemble the Rifle you will have to loosen it).


"quality"

chane downs on 7/1/2013 2:47:17 PMVerified

Overall Product Rating:


Exactly what I need to remove the barrel shroud from a mp5 22lr nicely made and came with new o ring


"HK 1/2x28 barrel"

Mike D on 7/30/2013 8:48:59 PMVerified

Overall Product Rating:


Great company and a great product! Quick ship, packed well and overall another great experience. Thank you!


"UmareX 416 .22 barrel Adaptor"

Sam C on 8/27/2011 10:02:39 AMVerified

Overall Product Rating:


A "must have" accessory for anyone who owns a .22 HK 416. Great price, excellent service.


"Allows compatilility with 1/2 / 28"

Kenneth Talbott on 11/21/2013 9:08:22 PMVerified

Overall Product Rating:


Now I can use all of my Ruger accessories on the HK - muzzle brakes and flash suppressor


"Great part"

Alec H on 6/26/2013 7:54:25 AMVerified

Overall Product Rating:


Great customer service and the part works great.


"Hk adapter"

william layton on 11/9/2014 11:13:32 AMVerified

Overall Product Rating:


Part was as described. Did it's job perfectly.


"Fits MP5SD .22 also"

michael darter on 2/28/2014 2:09:08 PM

Overall Product Rating:


This adapter is awesome! It also fits the MP5SD .22 as well as the A5 model. Perfect for mounting lighter weight barrel shroud on SD model .22 Thanks HKparts.


"Hk 22lr Umarex"

Jude Girtz on 2/23/2012 9:40:09 AMVerified

Overall Product Rating:


I purchased this to install on my Umarex HK 22lr. I did this to get rid of the fake suppressor. The fake suppressor made the gun too front end heavy. It works great.