XM-21 Repro.

[nf1e]

Put together a repro XM-21 using a Hi-Lux M40 3-9 scope.
Rifle is mostly SA with Bula receiver with SA USGI heel welded on by James River.
Works for me. Plenty of CMP USGI parts on this one.

[lyman]

nice looking rifle!!

do you think HiLux will make a cam to use on that mount?

[nf1e]

nice looking rifle!!

do you think HiLux will make a cam to use on that mount?

I have no idea. I just like to shoot these animals.

Waiting for a NF ATACR 5-25x56 F1 .250 MOA for an M14 precision project. Supposed to be here on Monday.

[lyman]

are you noticing any elevation changes with that mount (not having a cam to hold it down)? or is the mounting point for the bases pinned?

[nf1e]

The mount is staked on the front hinge area and very stable.

Heel stamp.

[Former Cav]

how do you keep the 1 screw secured.
I had a generation 3 springfield mount and could not get it to stay tight for more then 7 rounds with loctite even.

[lyman]

I put a fiber washer between on my 1st gen ART and it works well,
does not come loose at all, (I crank it down too)

[nf1e]

how do you keep the 1 screw secured.
I had a generation 3 springfield mount and could not get it to stay tight for more then 7 rounds with loctite even.

Pretty simple, I clean and de-grease both the bolt and the receiver hole and have used a dozen different single points with " none" coming loose. A problem many have is over torquing the bolt so it's tendency spring back causes trouble.
Also etching the mating surface of the bolt head and mount helps.

[Col. Colt]

Very nice looking rifle! The XM-21 was an outstanding performer - used by Sgt. A. Waldron - who was the top scoring US sniper in Vietnam. He also used a PVS-2 night vision scope to very good effect - something the M14 could easily mount that the M-40/Marine Bolt guns could not, limiting them to daytime actions only. CC

[nf1e]

Very nice looking rifle! The XM-21 was an outstanding performer - used by Sgt. A. Waldron - who was the top scoring US sniper in Vietnam. He also used a PVS-2 night vision scope to very good effect - something the M14 could easily mount that the M-40/Marine Bolt guns could not, limiting them to daytime actions only. CC

We used the Starlight scopes on our M14s for perimeter guard around the airbase at Chu Lai while I was there. Very effective for the time 1967 and 1968.