NorthernDude Posted June 10, 2017 Share Posted June 10, 2017 Hey guys, I'm new to the board and wanted to seek the advice of the AR15 gurus, I'm building my first AR, wanted to get some advice, always wanted to build a kick butt AR tack driver, so here it goes. Building a all purpose rifle, might get into a little 3 gun, lots of target shooting/plinking, seasonal hunting, etc. so far I have my upper being built and about a month out, and just finished my lower receiver machine work. Lower 7075 billet, mil spec, getting engraved and hard anodized Strike lower parts kitLUTH-AR MBA stock BAD 45 degree ambi safety Elftman service curve trigger Ergo original grip Battle arms enhanced bolt catch Strike industries mag catch V7 Ti buffer tube retainer pin Cross armory quick pins and pin pal Upper (already ordered, sorry for the caps, copy paste off my invoice email) CTR-02 BILLET UPPER ASSEMBLY, MATTE BLACK FINISH SUPERMATC BARREL, .223 CHAMBER, 18" MEDIUM CONTOUR, 1:8 TWIST, RIFLE-LENGTH GAS SYSTEM, BLACK TEFLON 3-PORT COMPENSATOR, 1/2"-28 TPI, .875 OD, .281 EXIT, BLACK MK III, FREE-FLOATING MODULAR HAND GUARD, XL RIFLELENGTH (15.50" OAL), ROCK BLASTED MATTE BLACK HARD COAT ANODIZED ADJUSTABLE GAS BLOCK, .936 BORE, BLACK ALUMINUM .223 STANDARD FIRING PIN LONG THERMAL DISSIPATOR, BLACK, .650 BBL 8.375" LOW MASS BOLT CARRIER FOR SMALL FRAME (.223), POLISHED 416 STAINLESS FINISH ENHANCED BOLT ASSEMBLY .223, CLEAR FINISH 223 UPPER PACK CTR-02 UPPER ACCESSORY PACK GEN 2 SILENT CAPTURED SPRING SYSTEM FOR AR-15 TYPE RIFLE INCLUDING SPACER FOR USE IN RIFLE LENGTH EXTENSION TUBE OpticsMICROELECTRONIC REFLEX SIGHT, CIRCLE DOT, 65 MOA RING WITH 1 MOA DOT RAIL OFFSET ADAPTER, 45 DEGREE ON BORE AXIS, 1.25" LONG RAIL ADAPTER FOR JPOINT SIGHT, COMPATIBLE WITH M-1913 PICATINNY OR MOST WEAVER TYPE RAILS WINGED GUARD ADAPTER FOR ANY JPOINT MOUNT Looking to get Swarovski Z3 Rifle Scope 4-12x 50mm Ballistic Turret JP rings Thinking the 12x should be is good enough especially since it's nice glass Also got a 22LR conversion so I can use it at my place from time to time, I'm in the country but cracking off 223 wouldn't be as friendly on the ears for my target traps as 22LR. So far it's going together pretty smooth MINUS the AR stoner A2 tube, seems like with the Cross Armory quick pins the tube is about 2.5 threads short of covering the buffer retainer plunger hole, since the Luth-AR MBA1 requires the A2 tube, anyway to get the MBA1 stock and my quick pins to play nice? Thanks! Link to comment Share on other sites More sharing options...
Vespid_Wasp Posted June 10, 2017 Share Posted June 10, 2017 Are you in California? Hence the reason for the quick pins? Link to comment Share on other sites More sharing options...
NorthernDude Posted June 10, 2017 Author Share Posted June 10, 2017 (edited) 6 hours ago, Vespid_Wasp said: Are you in California? Hence the reason for the quick pins? I travel bit with my work and for fun, so it's not uncommon for me to find myself in a less than constitutional state from time to time, also I just plane old like them, between cleaning and also swapping over to 22LR, seems like a cool piece, especially with the pin pal that prevents wear on the forward pivot. I took another look, seems like the plate for the pins is 1/8", so I'm 1/8" aft of where I sould be, could I just cut 1/8 of the threaded end off of another tube and thread it up to the existing buffer tube, and add a 1/8" shim behind the JP buffer? Or does someone make a longer threaded A2 tube? Want to build this rifle right, just trying to figure the best way to resolve this issue Edited June 11, 2017 by NorthernDude Link to comment Share on other sites More sharing options...
busdriver Posted June 11, 2017 Share Posted June 11, 2017 Don't worry about the buffer retainer. It's not needed with the SCS (silent captured spring). When installing a SCS I leave the retainer out. Link to comment Share on other sites More sharing options...
NorthernDude Posted June 11, 2017 Author Share Posted June 11, 2017 32 minutes ago, busdriver said: Don't worry about the buffer retainer. It's not needed with the SCS (silent captured spring). When installing a SCS I leave the retainer out. So all I need is a 1/8" spacer in the back of the tube to push the buffer forward? Link to comment Share on other sites More sharing options...
busdriver Posted June 11, 2017 Share Posted June 11, 2017 JP instructions say to use a quarter.... As in the coin. Link to comment Share on other sites More sharing options...
NorthernDude Posted June 11, 2017 Author Share Posted June 11, 2017 16 hours ago, busdriver said: JP instructions say to use a quarter.... As in the coin. So really, no retainer plunger needed eh? Link to comment Share on other sites More sharing options...
troupe Posted June 11, 2017 Share Posted June 11, 2017 Not needed. Link to comment Share on other sites More sharing options...
Vespid_Wasp Posted June 13, 2017 Share Posted June 13, 2017 On 6/11/2017 at 4:34 PM, NorthernDude said: So really, no retainer plunger needed eh? Not needed at all with the SCS. In fact, aside from retaining the buffer spring when you disassemble the gun, you don't NEED a retainer plunger in a standard AR. If you hold the buffer in place and get the upper pinned on, it works just fine without it. It just makes disassembly a PITA. Link to comment Share on other sites More sharing options...
NorthernDude Posted June 13, 2017 Author Share Posted June 13, 2017 Sweet, I just added two 1/16th by 1" nylon washers behind the spacer that came with the SCS, just felt better than having some cheap metal quarters back there thanks for the info guys! Link to comment Share on other sites More sharing options...
MotorMouth Posted June 16, 2017 Share Posted June 16, 2017 I used a piece of pvc pipe behind the buffer since I have a full length tube on mine... And no retainer plug. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now