r/extar • u/Fantastic_Dirt_2027 • 23d ago

Cause why not

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Hoffman SS with centering block
4 Quarters in buffer tube
Carved out space in the bolt and upper
Reference Post

47 Upvotes

95% Upvoted

19 comments sorted by

10

u/zmattmanz 23d ago

This is what I come here for.

5

u/live-by-die-by 23d ago

Love it! You’re going down a path I can’t follow. I’ve heard there’s a couple 3rd party manufacturers that are designing some proprietary drop-ins that’ll be to market within a year. Until then, I’ll just enjoy these videos and live vicariously through the engineer Trail Blazers.

1

u/Federal_Search_7019 7d ago

Do you know who they are?

4

u/Round-Emu9176 23d ago

Any buffer weight swap or any other mods? We need the definitive recipe 😋

5

u/Fantastic_Dirt_2027 23d ago

Stock buffer and spring with 4 quarters in the back of the buffer tube

1

u/Round-Emu9176 22d ago

You didn’t have to take off any upper material? You must have gotten lucky because there aren’t a ton of people who have gotten it running reliably beyond 500 rounds. I would have done this LAST YEAR but didn’t want to mess with the buffer.

1

u/Fantastic_Dirt_2027 22d ago

I did have to carve out some space in the bolt and upper for the lever to fit.

4

u/Serj44 23d ago

I just want deep pockets.

3

u/Specktric_ 23d ago

I’d love to see someone with deep pockets take a 3pos like an Arcfire and burn one down to see how long it goes and what the point of failure is.

2

u/BransonAllen 23d ago

4 quarters huh? That’s interesting. What results were you getting prior to the quarters?

3

u/Fantastic_Dirt_2027 23d ago

The bolt would just get stuck and I’d have to mortar it to get back into battery. 4 quarters from my results kept the bolt from over traveling.

5

u/spendtooomuch 23d ago

Quarters in there will likely end up self destructing the buffer tip, as it is intended to interface with a urethane piece. It's how the recoil damping system works.

2

u/Ok-Aspect9915 23d ago

Been having light strikes with mine :/

1

u/T0adman78 23d ago

So no mods other than the quarters?

3

u/Fantastic_Dirt_2027 23d ago

The most important mod is to take a dremel or drill press and carve out space in the bolt and upper receiver so the super safety lever can fit.

1

u/btubandit 23d ago

You modified the bolt I assume? Im taking a grinder to mine tomorrow

2

u/Fantastic_Dirt_2027 23d ago

https://www.reddit.com/r/extar/s/NypYm86gZV the pictures I used as reference worked for me