1. Insert in the bolt handle to prevent metal on metal contact when closing the bolt. Pretty easy, should be durable.
I think originals used a small block of wood.
2. Firing pin click.
The shoulder of the Enfield firing pin hits the base of the bolt head.
It's fairly loud on a well suppressed gun.
This can be muted by fitting a fiber, plastic, copper, or aluminum buffer washer under the firing pin flange (A).
Or between the end of the bolt and cocking piece (B).
The main issue with this is that in order to mute noise the buffer is going to be soft enough to wear.
Too much wear would lead to excessive firing pin protrusion and pierced primers, possibly even a broken firing pin.
Military armorers take care of their shooters so that such items are not an issue.
But dare I expect civilians to keep an eye on this sort of small buffer?
Replacement is pretty easy, but would require either unscrewing the bolt head (#A, Very easy) or #B, removing the firing pin with a couple of simple tools.
Is this perhaps a bad idea as civilians are not to be trusted with detailed maintenance, or are U.S. suppressor owners more careful than the average shooter?
3. The main down-fall of the original DeLisle appears to have been the flimsy and easily misaligned baffles.
Originals had a rod to set alignment, it seems they needed to be checked often.
I'm thinking of a mono-core design, keyed to the muzzle and the end cap.
I think this should help to eliminate alignment issues?
4. Weight.
The Enfield is not a light action.
I am looking for good quality aluminum tubing, seems hard to find.
I understand that the later original DeLisle design used an aluminum tube.
Should I stick to steel for durability, and resistance to careless handling or abuse?
Yes, I am striving to make the gun so quiet that these details should be relevant.
Of course, adding all of these would drive the work involved and price up a bit, decisions, decisions!
