HK Pistol Parts
- Accessories
- Magazines
MP5
- HK 94
- MP5 SD
- MP5 Clones
HK .22lr Rifles
- HK MP5
- HK 416
- GSG522
MP5K
- SP89, MP5K-N
- MP5K PDW
MP5 40
- MP5 10
- MP5 .357
HK 91
- HK G3
- PTR 91
- CETME
- G3K, PTR PDW
HK 93
- HK 33
- HK 53
- Vector Arms V53 V93
- C93
HK MR556
- HK 416
- HK 416A5
- HK MR556A1-SD
HK MR762
- HK 417
- HK MR762A1-SD
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
HK Firearms
- Pistols
- Rifles
- Custom Builds
Recently Added Products
Pre-owned HK Products
Glock Magazines
AR-15, AK-47, Glock Parts
Clipped & Pinned Services
Emergency Preparedness
Browse Catalog
Gift Certificates

HKParts Services

The Quick and Dirty Explanation

What does "clipped and pinned" mean?

Answer: We are referring to the front attachment point of the trigger housing to the receiver.
Check out the receiver examples below.

Example #1
Semi-Auto Shelf HK Receiver. Clipped and Pinned HK Trigger Housing

Requires clipped and pinned trigger housings or semi auto metal trigger housing.

Example #2
Push Pin HK Receiver and Trigger Housing Push Pin HK Trigger Housing

If your HK receiver looks like example #1 then you have a receiver that needs a clipped and pinned trigger housing or a semi auto metal trigger group.

There you go, happy shopping.

Trigger Housings Further Explained

Can the housing styles be swaped?

Short Answer: No.

Long Answer: Regular trigger housings can be altered through our "clipping and pinning service" to fit on a semi-auto shelf.

Example #3
Incompatible HK Trigger Housing Comparisons

Example #4
Incompatible Clipped and Pinned HK Trigger Housing

Example #5
Compatible HK Trigger Housing Comparisons

Example #6
Compatible Clipped and Pinned HK Trigger Housing



What the differences?

Answer: Regular trigger housings attach to the receiver with small push pin. Semi-auto trigger housings attach be inserting the semi-auto shelf into the trigger housing.

Example #3
Left - Un-Altered Trigger Housing.
Right - Clipped & Pinned Housing HK Trigger Housing Comparisons

Example #4
Clipped and Pinned
HK Trigger Housing Clipped and Pinned HK Trigger Housing



Example #5
Semi-Auto Metal Trigger Group HK Trigger Housing Comparisons

Example #6
Push Pin Housing with Small Push Pin Installed HK Trigger Housing Comparisons

Sort by:

Clipping & Pinning Service For HK Lower Housings

Clipping & Pinning Service For HK Lower Housings

Price $44.95