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2/10/2026 8:55:34 PM EDT
Well, I went out and bought a new Sig 300 suppressor....now I need to buy something to put it on. Any suggestions?
At least what I'm thinking right now....buy a 10.3" PSA Sabre ($1100), buy a complete .300 PSA Guardsman  ($600), buy a PSA .300 guardsman upper and slap it on a Aero lower already have ($400), or just go frickin hog wild and buy a Geisselle .300 black out Mod 1 SBR ($2100) ? I own "enough" ARs really, just want to try something different.....I don't shoot alot anymore,  just so.e plinking a couple times a month at the farm. I currently don't own any ARs in the $2k+ price range...are they really worth the extra money? I know the Geisselle might be better than the Sabre, but is it $1000 better? The more I read on the .300 blackout it seems like no matter the $ you spend its unlikely to be shooting MOA (or close) @ 100yrds.  Im buying this to be silent, so 95%+ of the time Ill be shooting subs.....I'll admit, a week ago I was only buying the upper to slap on a lower I have collecting dust....I know, go be poor somewhere else...blah.blah blah...any advice is appreciated
2/10/2026 10:28:23 PM EDT
[#1]
I'd go with just an upper if just plinking here and there. PSA for now - keep it cheap. If you find yourself getting more involved in 300BLK, then upgrade later. You can then sell the PSA upper.
2/10/2026 10:47:30 PM EDT
[#2]
I have both the Sabre and the Geiselle 300BO uppers. Sabre shoots just fine and is pretty decent for the price. I did have to mess with it a bit more than the Geiselle to get the gas right when surpressed.
2/11/2026 8:06:44 AM EDT
[#3]
Quote History
Originally Posted By SCR556:
I'd go with just an upper if just plinking here and there. PSA for now - keep it cheap. If you find yourself getting more involved in 300BLK, then upgrade later. You can then sell the PSA upper.
View Quote

Thank you for the reply.  Me, and my wallet, appreciate the feedback !!!
2/11/2026 8:09:30 AM EDT
[#4]
Quote History
Originally Posted By gofaster87:
I have both the Sabre and the Geiselle 300BO uppers. Sabre shoots just fine and is pretty decent for the price. I did have to mess with it a bit more than the Geiselle to get the gas right when surpressed.
View Quote

Thanks !! That sounds good. I know every rifle/ammo combo can be a little different,  but.mind me asking what all you had to do to get it shooting reliable? Are we talking just swapping out buffer weights and springs? Or I've seen some guys talk about having to drill out the barrels gas port a tiny bit....? Thanks again
2/11/2026 11:44:43 AM EDT
[#5]
Quote History
Originally Posted By Onlyaspike:

Thanks !! That sounds good. I know every rifle/ammo combo can be a little different,  but.mind me asking what all you had to do to get it shooting reliable? Are we talking just swapping out buffer weights and springs? Or I've seen some guys talk about having to drill out the barrels gas port a tiny bit....? Thanks again
View Quote

The sabre upper came with a rifle speed adjustable gas block. I just played with the buffer weight and gas block till it ran reliably.
2/11/2026 11:48:21 AM EDT
[#6]
The sabre's are very nice.  I just got a 16" 308.  Getting one of the shorter ones with the riflespeed gas block (which is awesome!) is on my list.
"Some people have issues. Sounds like he signed up for an entire subscription." ~Brohawk
Proud member of Team Ranstad.
Arfcom St Jude Mafia 3 years
Arfcom callsign: trenchfoot
2/11/2026 3:19:04 PM EDT
[#7]
Get a PSA Mix Tape.

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