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Posted: 4/7/2024 1:01:36 PM EDT
I have a complete Geissele SD lower sitting around, but not sure what I want to build with it. I do know that the goal here will be lightweight. The goal will be to have it weigh about 5 lbs before accessories & can are added. It will just be a range toy.
I'll likely swap some of the existing lower parts with lighter parts, but the receiver itself & trigger will stay. Well, maybe I will replace the trigger with a Larue MBT-2S I have in the parts bin and sell the SSA-E X Lightning bow lol.

It will be run suppressed full time. Kicking around the idea of finally diving into the world of low mass BCGs and adjustable gas blocks. I do know that will end up with a Fostec handguard on whatever I build.

I already have a 16" barrel AR, 10.5" SBR & 14.5" AR along with a 22LR rifle, 22LR pistol & AR9 pistol. I did think about doing 300 blackout, but not really wanting to add anymore calibers. Especially ones with expensive ammo. Outside of that, I have no clue what to build. I know I don't want to build a dupe of what I already have.
Link Posted: 4/7/2024 1:03:17 PM EDT
[#1]
18” SPR type rifle
Link Posted: 4/7/2024 5:43:11 PM EDT
[#2]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By EdgecrusherXES:
18” SPR type rifle
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Aren't they typically heavy? ALso was not wanting to go beyond 16" barrel TBH

The #1 goal here is lighter weight (Not the lightest ever or anything close to that. Just lighter than what I have.)
Link Posted: 4/7/2024 8:00:04 PM EDT
[#3]
While that would compliment your current layout, SPR is not anything like you're asking for. You could however put some money into making your 10.3 lighter and make that your light weight gun and then add an SPR. Not sure of your needs, but no. SPR doesn't fit your criteria
Link Posted: 4/8/2024 3:59:57 AM EDT
[#4]
A1 upper with a 16" pencil barrel then.  N1 stock and CAR handguards.
Link Posted: 4/8/2024 8:11:48 AM EDT
[#5]
Take the shortest possible barrel that is still legal in your country, put a loudener on it and annoy the hell out of your neighbours for pissing you of 20 years ago.
Link Posted: 4/8/2024 9:35:37 AM EDT
[#6]
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Originally Posted By Combat_Diver:
A1 upper with a 16" pencil barrel then.  N1 stock and CAR handguards.
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No carry handle or fixed stocks for me
Link Posted: 4/8/2024 10:44:41 AM EDT
[#7]
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Originally Posted By RangeToy:

No carry handle or fixed stocks for me
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N1 stock is not fixed.  Original CAR15/XM177 stock.
Link Posted: 4/9/2024 3:12:17 PM EDT
[#8]
How much quieter will suppressed 300 Blackout be vs a suppressed 5.56 round out of a 10.5", 14.5" and/or 16" barrel? I'm not going to stock a new caliber for minimal returns
Link Posted: 4/9/2024 11:53:15 PM EDT
[#9]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By RangeToy:  How much quieter will suppressed 300 Blackout be vs a suppressed 5.56 round out of a 10.5", 14.5" and/or 16" barrel? I'm not going to stock a new caliber for minimal returns
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Subsonic .300 Blackout is as quiet as subsonic 7.62x39mm, unless it's chambered in a 5.56x45mm gun.
Link Posted: 4/15/2024 10:59:09 PM EDT
[#10]
After looking at 300 BO subsonic ammo prices, I'll pass.
Link Posted: 4/16/2024 4:43:24 AM EDT
[#11]
Build a nice 20 inch A2 clone. Everyone needs one.
Link Posted: 4/16/2024 6:49:19 AM EDT
[#12]
I am a big fan of anything 14.5”, so that is my recommendation

I still think the KAC 14.5” Mod 2 Carbine is the finest looking rifle ever made
Link Posted: 4/16/2024 5:32:54 PM EDT
[#13]
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Originally Posted By 77Bronc:
I am a big fan of anything 14.5”, so that is my recommendation

I still think the KAC 14.5” Mod 2 Carbine is the finest looking rifle ever made
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Already have 14.5" so what could I do different enough to make it worth it?
Link Posted: 4/16/2024 7:04:45 PM EDT
[#14]
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Originally Posted By RangeToy:

Already have 14.5" so what could I do different enough to make it worth it?
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You have your bases pretty well covered with your current ARs.  

I'd be looking at an 18"-20" 5.56 or a different caliber (.300 BLK, 6.5G, 6mm ARC, or 6.8 SPC) if I were in your shoes.
Link Posted: 4/16/2024 7:51:00 PM EDT
[#15]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By drewthebrave:


You have your bases pretty well covered with your current ARs.  

I'd be looking at an 18"-20" 5.56 or a different caliber (.300 BLK, 6.5G, 6mm ARC, or 6.8 SPC) if I were in your shoes.
View Quote

Thought about 300 BO, but no thanks due to ammo cost. Looks like same boat with those others :(
Link Posted: 4/16/2024 8:07:24 PM EDT
[#16]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By RangeToy:


Thought about 300 BO, but no thanks due to ammo cost. Looks like same boat with those others :(
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Discussion ForumsJump to Quoted PostQuote History
Originally Posted By RangeToy:
Originally Posted By drewthebrave:  You have your bases pretty well covered with your current ARs.  

I'd be looking at an 18"-20" 5.56 or a different caliber (.300 BLK, 6.5G, 6mm ARC, or 6.8 SPC) if I were in your shoes.


Thought about 300 BO, but no thanks due to ammo cost. Looks like same boat with those others :(


7.62x39mm is typically lower cost, though rising, and also available subsonic.  .350 Legend is a straightwall legal hunting caliber, not blasting ammo.  If you have access to a long distance range, then 6.5G, 6mm ARC, etc, start to look more interesting.
Link Posted: 4/18/2024 5:07:26 PM EDT
[#17]
Maybe I should get a 7.5" 5.56 upper. I can just slap that on my SBR lower and run it suppressed.

Other choice might be a 4.5" ish barrel  9mm AR build.

I could just waste time & $ and build a 12.5" 5.56 upper lol

In other words, I am still wildly unsure of what to do.
Link Posted: 4/21/2024 5:20:29 PM EDT
[#18]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By RangeToy:
Maybe I should get a 7.5" 5.56 upper. I can just slap that on my SBR lower and run it suppressed.

Other choice might be a 4.5" ish barrel  9mm AR build.

I could just waste time & $ and build a 12.5" 5.56 upper lol

In other words, I am still wildly unsure of what to do.
View Quote

Surprised this post did not get any replies.
Link Posted: 4/21/2024 5:25:39 PM EDT
[#19]
12.5 6mm arc
Link Posted: 4/21/2024 6:03:50 PM EDT
[#20]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By bzugger:
12.5 6mm arc
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I already said 300 BO ammo is too high IMO so 6.5 arc is obviously a hard pass
Link Posted: 4/22/2024 6:12:43 PM EDT
[#21]
Did I suggest a .410 shotgun upper already?
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