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Prexis Product List

US Made Barrels
Custom Machining Services
New Products coming soon
Contact Us
Legal Info

We Recommend finishes from

Parts & Kits
***Cope's Distributing ***
***APEX ***
***Sarco Inc. ***
***GreenMountain Barrels ***
***Tactical Machining***  
Centerfire Systems 
Military Gun Supply 

"How To" Build CD's ** 

Prexis "Legacy Products"
available now available from HBA
(Hell Box Armory)

Beretta 38a
Suomi M31
Yugo M-56
Star Z-45
Semi-Auto Sten & Barrels

Other HBA  "Hot Products"
PPSH-41 Repair Sections and services
VZ-58 Hybrid 80% (Non-FFL) Receivers
MP-34 Reciver Repair Section

*Weapons Guild 
Firearm Builder's Forum

1919a4 ***
MG42 Forum

Free Stuff
Beretta Semi-Auto 
Semi-Only Sten 
Info & Blueprints
Build a Sten MK-II from Scratch

Auction Sites
Gunbroker Auctions
(Firearm Books)
A&J Arms BookSellers 


Prexis, offering build solutions for the firearm builders.

 Now offering US Made barrels for PSL, DP/DPM, PKT/PKM, & ZB-37
(Please Note that we do "Not currently stock or inventory any of our products. All items are custom machined after receipt of payment. See individual items for approx. shipping time frames)
(Approx. ship times are estimates. This is a "One man" CNC & manual shop. Material delays, equipment, and other unforseen situations could extend the estimated times)
VZ-52 and CZ-24/26 Barrels now available.

New PAR-10, 20, 30, 50 Series of "Battle Rifles"
Available 2014

Available in the following Calibers.

PAR-10                  PAR-20                PAR-30               PAR-5
     9mm                           .556                                30-06                      .50 BMG
       6.5 Grendel                     .338 Lapua
 7.62x39                              .243
                                                 8mm Mauser

"FFL Rifles and 100% Receivers will be available from "Tec Tactical"

Barrel orders placed prior to 5/30/2014 will all be shipped by the dates below (by type)
Aug. 22nd Oct. 5th Oct. 12th Oct. 19th Oct. 27th Nov. 7th
(since all materials and tooling have been purchased there can be no refunds on these pending orders)

Note on Purchased Barrels.
All of our barrels are made to "Original" factory barrel dimensions.. These dimensions have a +/- tolerance.
When your barrel components were installed on the your original barrel, they were "Fitted" to that barrel.
Depending on whether that original barrel was at the minus, dead on, or plus dimension,
your barrel components may fit loose, snug, or very tight as you install them on the new barrel.
We have no idea what was done to your barrel components (trunnion through muzzle device) to get them
installed on the original barrel. "If" you receive a barrel from us that you feel is out of spec (because of your parts
fitting to tight or to loose) please contact us.. We will help you with methods of using the barrel (if it is within our spec's)
or provide a replacement barrel (if we find it is out of our spec's)
Any barrel returned to us that is "within" our spec's will be charged a 20% restocking fee.


New orders placed from 7/23/2014 to present will start shipping in December 2014

NOTE: All of our products at this time are custom built when ordered. See individual receivers for current shipping time.

Here is a "New" Source  for additional Firearm Building Components (including PPSH-41, 1919a4, BATF approved Fake Suppressors and more) 
"Hell Box Armory"


Free Sten technical information. Free Semi-Auto design drawings and plans. Download SMG receiver plans, 300 Blackout upper, 6.5 Grendel, .450 Bushmaster, PAR30 AR Platform, AR-15 uppers, RPD Re-weld fixtures, firearm building parts, firearm reproductions, RPD receivers. Please visit ", the Premier Firearm Builders Forum". weaponsguild homebuilt challenge, firearm building contest, homebuild, homebuilt challenge, firearm building challenge contest, build challenge, premier firearm forum


All ATF/NFA rules apply to purchases made from this site. 
The information/products in these web pages are not intended to be used to construct illegal firearms. 
For legal semi auto and dummy gun information, contact BATF at: