Dueling 12.5's - build planning, ersatz-GL/SSC vs GAU-5 ASDW

[Stickman]

Honestly, Stick, with options at 10.3/11.5/12.5 with good ammo, for practical purposes, do you see much point in anything longer than a 12.5” besides maybe an 18” SPR?

Sorry that I missed this question. I think once we start to reply with yes or no, we get back to condensing that idea that we may as well all use 12.5s. It also brings up the question of ammo and by that point we are on the slippery slope to all arguing that "Stick sucks, we should just carry Mk18s".

[JediGuy]

"Stick sucks, we should just carry Mk18s".

That would be interesting, since I believe you shared pictures of your go-to 10.3” carbine. I guess haters gonna hate.

[Hammer_Man]

https://www.operationparts.com/kac-k...flip-up-sight/

FYI URX II in stock at Operation Parts

[Diamondback]

Dusting off and updating now that Midwest has discontinued the G3ML10.5 rail and complete ASDW uppers...

Component	Common	Vendor/Cost	ASDW Specific	Vendor/Cost	GL/SSC Specific	Vendor/Cost
Lower Receiver	Aero M4 clone	my usual FFL
Backend Kit (buffer, tube, spring)	std-length pistol tube
LPK	Damage Industries
Ambi Safety	Schmid	Arms Unlimited 15
Ambi mag catch	Norgon clone	Arms Unlimited 25
Grip	(build specific)		FAB AGF-43 folder, black	Lanbo's 39.33	FAB AG43, FDE
Upper receiver	Aero AR15 assembled	Lanbo's 74.26
Barrel, Gas Block, Gas Tube, BCG	Rosco Bloodline 12.5" Sauce Kit	Lanbo's 249.30
Takedown Kit	(ASDW only)				Cry Havoc QRB 2-pin	Brownells 425 OR OpticsPlanet 409.99 (whoever has better coupons at Go Time)
Handguard	(build specific)		Midwest 10.5", either: G4M10.5 OR CRM10.5	Lanbo's 139.36 (G4) OpticsPlanet 122.37 (CR)
Charging Handle	Basic milspec
Muzzle Device	Spares-bin A2
Iron Sights	(build specific)		Magpul MBUS PRO	Lanbo's 129.19/set	??? (recheck refs)
Optic			NA		?Elcan SU-230 or SpecterDR 1-4x
Grenade leaf-sight	(GL/SSC only)		NA		???
37mm faux-M203	(GL/SSC only)		NA		???

[JediGuy]

Should be cool once it’s together. And even if the local FFL doesn’t have the lower you want, prices are down everywhere and it’s Sale Season..,

[Diamondback]

One other PIP item: While current ASDW has its parts "float" separately in the bag, the PIP version will use a QD riser and double-sided Picatinny claw adapter to make the two sections a single piece in the bag.

[Disciple]

One other PIP item: While current ASDW has its parts "float" separately in the bag, the PIP version will use a QD riser and double-sided Picatinny claw adapter to make the two sections a single piece in the bag.

Is that what the lower rail section you added is for?

[Diamondback]

Is that what the lower rail section you added is for?

Plan is to use the rear top-rail stub for "stowed" connection. The lower rail is in case either the connector blocks the sights and I need to make it fully removable, or the Cry Havoc crud-cover blocks the stub and I need a different mount point. As of about five minutes ago, I'm now thinking move the connector-stowage up front so it can pull double duty as a handstop... maybe depending on space and clearances rack in a mag-carrier along the top or bottom.

Side not here, a lot of this depends on the height of the folded MBUS 3's--if they're low enough to "close couple" and the riser-coupler combo low enough to not block sight picture, the coupler just stays mounted on the upper receiver. If it needs enough extra clearance that I need to add a second riser, then the "remove and remount" scenario comes into play. Funny: I never thought I'd have anything good to say about Leapers UTG, but I think between this and the modular backends on my "Quick-Change Charger" I may have found a niche where they actually ARE good for something!

Another note: The concept on ASDW-PIP calls for a ten-round flush-fit mag (eg, 10-rd PMAG) in the well and ready to go at all times except when legally prohibited, in addition to the USAF standard 4x30 in two (not USAF spec) double-mag pouches. Yes, this makes PIP a bit heavier than its root design, but I'm still trying to keep it lean, clean and agile rather than "Gearqueer Visit from the Gadgets Fairy."

[Disciple]

Modular backends?

Would a 15-round magazine be about the same height as the folded grip?

[JediGuy]

Are the accessories on the bottom and top rails clone-specific?