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3/6/2025 7:43:23 PM EDT
[#1]
Attached File
Do Good
Be Dangerous
Live Free
3/20/2025 10:40:49 AM EDT
[#2]
Stick
4/2/2025 10:51:10 AM EDT
[#3]
I was referred here in another thread. I'm working on building my 3 SBR'd Palmetto State M4A1 lowers into clones. What, generally, are the characteristics of a USMC M4 build? Would they be on an M4A1 lower?
4/7/2025 5:24:33 PM EDT
[Last Edit: Stickman][Edited] [#4]
Quote History
Originally Posted By ELittlefield:
I was referred here in another thread. I'm working on building my 3 SBR'd Palmetto State M4A1 lowers into clones. What, generally, are the characteristics of a USMC M4 build? Would they be on an M4A1 lower?
View Quote



Closest thing with lowers is getting a Colt, with second being a FN lower.  Those are companies which actually make M4s for the MIL.  PSA isn't even close, so don't worry about it and just go with what you  have.  If you want to SBR a PSA lower, I would make sure it mates up nicely with your chosen upper(s).  Once that is done, build it up into whatever obscure variant makes you happy.  If you want to go Clone specific, find pictures of the weapon in its issued format, and just copy it.  

You will never have a "correct" lower, so that is the last thing to worry about.


ETA-  Google USMC M4A1 and you will get loads of pictures.  The most common is a basic M4 with KAC rail and an ACOG.
Stick
4/7/2025 8:07:25 PM EDT
[#5]
Quote History
Originally Posted By Stickman:



Closest thing with lowers is getting a Colt, with second being a FN lower.  Those are companies which actually make M4s for the MIL.  PSA isn't even close, so don't worry about it and just go with what you  have.  If you want to SBR a PSA lower, I would make sure it mates up nicely with your chosen upper(s).  Once that is done, build it up into whatever obscure variant makes you happy.  If you want to go Clone specific, find pictures of the weapon in its issued format, and just copy it.  

You will never have a "correct" lower, so that is the last thing to worry about.


ETA-  Google USMC M4A1 and you will get loads of pictures.  The most common is a basic M4 with KAC rail and an ACOG.
View Quote View All Quotes
View All Quotes
Quote History
Originally Posted By Stickman:
Originally Posted By ELittlefield:
I was referred here in another thread. I'm working on building my 3 SBR'd Palmetto State M4A1 lowers into clones. What, generally, are the characteristics of a USMC M4 build? Would they be on an M4A1 lower?



Closest thing with lowers is getting a Colt, with second being a FN lower.  Those are companies which actually make M4s for the MIL.  PSA isn't even close, so don't worry about it and just go with what you  have.  If you want to SBR a PSA lower, I would make sure it mates up nicely with your chosen upper(s).  Once that is done, build it up into whatever obscure variant makes you happy.  If you want to go Clone specific, find pictures of the weapon in its issued format, and just copy it.  

You will never have a "correct" lower, so that is the last thing to worry about.


ETA-  Google USMC M4A1 and you will get loads of pictures.  The most common is a basic M4 with KAC rail and an ACOG.

They're a lot closer than you think.  Pretty sure @Combat_Diver had input before they came to market.  Safety selector stops, proper safe/semi/auto(or burst for M4) markings, W series serials.  Might be missing an item or two.
4/8/2025 1:45:43 AM EDT
[#6]
As stated, No lower is going to be 100% unless you mark it yourself.  Colt and FN while current manufactures of the M4/M4A1.  Markings not the same.  PSA markings correct but no logo/address.
De Oppresso Liber
Iraq: 91,03,04,05,06,08,09,15,16,22,23,24&25'
Afghanistan: 09,10,11,14,17,18,19,20&21'
4/8/2025 3:33:32 PM EDT
[#7]
Been on an m4 kick lately
4/9/2025 7:56:08 AM EDT
[#8]
Attached File

New barrel on my old 6920.
4/12/2025 11:09:05 PM EDT
[#9]
It has a Colt M4 barrel hidden under that can.

Attached File
4/13/2025 10:31:47 AM EDT
[#10]
5/10/2025 11:47:51 AM EDT
[#11]
Did 4 tours of the Cola Wars
5/10/2025 3:43:33 PM EDT
[#12]
Attached File
5/20/2025 9:33:07 PM EDT
[Last Edit: Dyzastr][Edited] [#13]
Starting a new (old) m4. Saw on the first pg that gov profile isn't welcomed here. Wasn't sure if that's still the consensus or not? Anyhow, got the parts started for an early block 1 m4(a1)? Been a while since I've had one so not sure. Were the m4a1's only SOCOM profile?

I've got a pic somewhere of an early m4 with a ggg 1201 rail. Maybe it was the 1285? Either way, once i find the pic again I'll upload it with my finished setup. Has a raised "C" cardinal forge upper.
Attached File
Who said that?
6/3/2025 5:22:57 PM EDT
[#14]
I like the rifle buttstocks. Been considering one an a 16".
6/17/2025 11:14:13 AM EDT
[#15]
Stick
6/17/2025 1:46:28 PM EDT
[Last Edit: Combat_Diver][Edited] [#16]
SHORT Act has been added to the BBB along with the HPA.

SHORT Act would remove SBS, SBR and AOW from the NFA.  HPA would remove suppressors from the NFA.  Only thing NFA would still require a TAX stamp for would be Full Auto and DDs.  Clones getting closer!
De Oppresso Liber
Iraq: 91,03,04,05,06,08,09,15,16,22,23,24&25'
Afghanistan: 09,10,11,14,17,18,19,20&21'
6/17/2025 4:21:32 PM EDT
[#17]
@Willisinnawoods

Well sunnuvabitch now I think I need to make a 723 clone thanks to your pic! Looks great with the ODG.
6/17/2025 9:48:40 PM EDT
[#18]
Quote History
Originally Posted By Rubles:
@Willisinnawoods

Well sunnuvabitch now I think I need to make a 723 clone thanks to your pic! Looks great with the ODG.
View Quote


Thank man! I got the ODG CAR-15 stock and HG's from B5 Systems in their new Retro lineup and the matching ODG A2 grip from Cav Arms Manufacturing.
Did 4 tours of the Cola Wars
4/30/2026 7:02:22 PM EDT
[#19]
Almost done with my clone of my last issued carbine.

I need to acquire a gov issued version SOPMOD stock and a Aimpoint M2 (already have the Wilcox Mount).

The issue one had a KAC NT4 flash hider but I wanted to make this upper into a 16” upper so I can use my SBR lower without papers if I go out of state. So had ADCO P&W an ext. A2.

SOCOM profile barrel, KAC rail, Surefire scout, TD vert grip, CQD end plate and a LBT sling.

Besides the the stock and aimpoint its set up the exact same way I used it on deployment.

Attached File


Attached File


Thanks to @col1981 for selling me the KAC 300 meter BUIS
5/5/2026 8:42:45 PM EDT
[Last Edit: BUCC_Guy][Edited] [#20]
Started as some orphan ARMS sights and a rail.  Ended up with a Colt 14.5 p/w



Attached File




The M4 family grows but I still have an orphan P&S rail.  Might build another.  Maybe one with an Elcan?   Ohhh, Elcan and PRI flippy gas block.  

Attached File



"Here we are having a nice discussion on swords and the fucking pikemen gotta shit all over the place." - Silverbulletz06
5/6/2026 9:57:47 AM EDT
[#21]
I still like mine

Colt M4A1 by Solo__, on Flickr

5/6/2026 2:16:18 PM EDT
[#22]
My 6920, bought new in 1998. It's morphed into several configurations over the years, but I've brought it back full circle close to what it was circa 2000 when I carried it as a Patrol/SWAT rifle. Had the barrel cut to 14.5" and SBR'd it several years ago.

Attached File
5/6/2026 3:53:13 PM EDT
[Last Edit: MarkEighteenMan][Edited] [#23]
This is my M4A1 clone I made a while back. Not sure for my next M4/M4A1 if I want to do a block 2 or something more like a M4 carbine.

7/3/2026 1:34:48 AM EDT
[#24]
My dedicated FRT range blaster. This upper keyholes at 100 yards so it has been relegated to practicing bursts and magdumps into steel.

Attached File
7/3/2026 11:25:53 AM EDT
[#25]
An armed society is a polite society.

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