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

[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		???

[Diamondback]

Game On! It's not "pure" in light of the G3 being toast, but I'm using a Combat Rail Lightweight and planning MBUS 3 sights calling it "ASDW-PIP" for "Product Improvement Program." I'm gonna have the anti-rotate tabs chopped, since I figure the Air Force gunsmithing shop wouldn't particularly care about commercial warranties. Dvor got the QRB for $370, so that was like a sign from above that it was Go Time.



Left to do: the folding grip, lower receiver (I need to call my FFL and see if they still have Aero faux-M4's), barrel/gas block and BCG (all in the Rosco Sauce Pack).

[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?

[Diamondback]

Modular backends?

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

"QC" was meant to exploit the same pistol-to-rifle-and-back capacity of a T/C Contender or AR pistol, using the rear brace-mount rail of the Charger Takedown and interchangeable barrels. (Leapers 3-slot QD riser, Midwest sidefold storage tube with SBA3 or SOPMOD slid on--right now the SBA3 is in my storage unit and I keep a railcover on the back unless the 16" barrel is on. Concept was "if I were building a briefcase gun for 007 like From Russia With Love"...)

A 15 would stick out a good bit more I think, the FAB folder really doesn't project very far--maybe 1/4 to 1/3 inch from the bottom of the lower. Would be worth experimenting if WA hadn't just gone Klinton Klip Bullshit, though.

[Diamondback]

Further PIP revision: Cannibalized the Vltor A5 pistol backend and PWS ratchet endplate/castle nut off the "Mk 18 Mod Briefcase" mockup, along with its ODG folding grip in place of USAF black. (Grip and PWS plate/nut aren't PIP, it's a combination of "use parts already on-hand" and ODG kind of becoming a "signature" on my non-clone builds since I'm all about bottom-feeding with sales, discounts and clearance. (C. tells me I out-powershop many women she knows... I'm still not sure how to take that.)