I have done a pump fit to a ar and then took a side discharge upper and put a bolt on kinda like the Swiss army rifles have. The spring in tube made too much noise so I cut a piece of rubber sandal inside of tube against back wall and noise went away. Fun to do when nothing else to do.
Look twice, shoot once.
With the gas disabled and the pump cycling reliably with all common j-word ammo.
Has anyone had success with getting an ar15 to cycle with round nose ammo similar to a round nose 30-30 type bullet ? Or at least something with a wider frontal area. My feed ramps are the m4-5.56 type despite being chambered in 300blkout.
I may ask a local gunsmith to recut the ramps but I’m unsure what type or dimensions of cut will actually work for a wide nose.
Alternatively are there other magazine follower designs that can offer some assistance in this?
The left ramp feeds almost fine with pmags. The right not well at all.
GI mags not at all
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Last edited by johnsonian09; 08-07-2022 at 08:55 PM.
There is a mod one can do in the sides near top of PMAGS for the 300 BO, helps a bunch. Removing the sharp edges from feed slots is a good first start, nice smooth radius and try some.
Kind of comparing apples to oranges with the shotgun comment.
About taking two hands to operate, just about every semi-auto pistol takes two hands to operate, for the first shot anyway.
But then again with the gun laws are, you may be right, perhaps not right now, but maybe next week.
Also, they sell mares leg, lever action pistols here.. that definitely takes 2 hands. So a pump doesn’t seem like it should be a problem.
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BP | Bronze Point | IMR | Improved Military Rifle | PTD | Pointed |
BR | Bench Rest | M | Magnum | RN | Round Nose |
BT | Boat Tail | PL | Power-Lokt | SP | Soft Point |
C | Compressed Charge | PR | Primer | SPCL | Soft Point "Core-Lokt" |
HP | Hollow Point | PSPCL | Pointed Soft Point "Core Lokt" | C.O.L. | Cartridge Overall Length |
PSP | Pointed Soft Point | Spz | Spitzer Point | SBT | Spitzer Boat Tail |
LRN | Lead Round Nose | LWC | Lead Wad Cutter | LSWC | Lead Semi Wad Cutter |
GC | Gas Check |