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HellBox PPS Trunnions

 

HellBox is proud to offer PPS trunnions in different styles to accommodate different build techniques.

PPS Trunnions ship with the following rivets
All trunnions ship with 2 rivets to be used in securing the trunnion bracket
Rivet style trunnions come with a additional "top" rivet that is custom machined to fit within the recessed pocket within the bore of the trunnion
(to give clearance for the barrel to pass though)

Bracket not included - DIY bracket dimensions are here

Here is a picture of a standard "Lipped" barrel (used with long face trunnions) verses a "Lip-less" barrel

Here are the four styles currently offered:

Long Face Rivet Style: This is the standard trunnion used with a standard "Lipped" barrel and is drilled to be riveted to the upper receiver

 

Long Face Weld in  Style: These are for weld together builds, they are faced for a standard "lipped" barrel and have no provision for a top rivet

 

Short Face Rivet Style: This is a rivet in trunnion designed to be used with a barrel that has been profiled without a lip. The standard PPS barrel has a .160 lip on the chamber end of it, the face of this trunnion has been set back .160 to allow for a smooth barrel to be set flush with the trunnion face and pinned in place.

 

Short Face Weld in Style: This is a weld in trunnion designed to be used with a barrel that has been profiled without a lip. The standard PPS barrel has a .160 lip on the chamber end of it, the face of this trunnion has been set back .160 to allow for a smooth barrel to be set flush with the trunnion face and pinned in place.

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