Product Description
Includes:
- Left & Right Stampings that have been welded together and the preliminary cutouts and holes have also been cut into the part. No deburring work or cleanup has been done to these cutouts (see pics).
- The rear has been machined for buffer rotation and the buffer reinforcing tabs have been installed.
- Extra ratchet plate is included but not installed (see installation info in pics)
- Semi Auto Blocker
- Rear Rivet Kit for Rails, Trigger Housing & Mount Bracket
Notes Blems and Added Work (PDF):
Ratchet Plate Replacement
- The ratchet plates installed were set too high and need to be approx 2mm lower and recut to make the charging handle slot at the center of the bumps (see pics).
- They come off pretty easy just by plunging the spot welds with a 1/2” endmill (see pic)
Rear Buffer Latch Machining
- Lower the buffer latch stud step as necessary to allow for proper buffer latch pivot
- Machine down front rivet heads as necessary to all for buffer latch movement.
- The rear rivet head should be machined flat to accommodate the buffer latch spring seat hole.
- Locate the center for the spring hole at approximately at the center of the rear rivet. You can center on the rear dimple on the latch. Use an 11/64” drill can Z -.18 from the sheet metal to get the hole depth for the spring seat.
Charging Handle Note:
•We could not get the inside sharp radius on the main receiver charging handle inside slot so the charging handle would need to be modified to clear the slot (see pdf)
Front Bend:
•These are pretty easy to bang out using a steel bar braced inside the receiver and supported by an arbor press, then hammering the bar to move the sheet metal.
Info:
- The overall length on this is 16" in. We left them .75 longer in the front - 16” total
- The buffer tabs are installed and checked for proper rear stock/buffer rotation.
- The rear has been machined for buffer rotation and the buffer reinforcing tabs have been installed. They are only installed with rivets but should be reinforced with spot welds.
- None of the cutouts have been deburred.
- The charging handle slot on the receiver has been machined on the receiver
- The charging handle slow has NOT been machined on the ratchet plate
- The charging handles need to be modified per the attached print for proper fit and function. We couldn’t get the inside corner radii like the originals so we figured this was the best alternative to leave sufficient sheet metal on the receiver.
- The finished external dimensions of the receiver are the same for the BRP semi pattern MG42 as well as the original full auto MG42.
- The cutout pattern on the bottom is the unfinished with respect to the trigger housing and ejection port features.
- Material 1010 Steel - Cold Roll. Sheet Metal Thickness - 2.5mm (approx 0.1 in.) same as original MG-42
- The top inside track for the bolt & mainspring clearance has not been beveled (see prints).
Receivers must be shipped to an FFL. Send license via email to info@brpguns.com. Be sure to include the order number or customer name with the FFL.
