AR Technical Discussion [Archive] - Page 37

Informative SOPMOD PDF (6 replies)
Question on Rear Aperture Subtension (0 replies)
triggers?? (8 replies)
Is there a Bayonet Expert in Da House?? (15 replies)
Bolt carrier groups ? (7 replies)
Bolt extractor spring and o ring upgrade confusion (2 replies)
Buffer tube: CMT and LMT (11 replies)
Headspacing (5 replies)
Strange Colt 6551 (6 replies)
Mil-Spec Mag Spring life (3 replies)
Geissele and Colt 6920 compatible? (4 replies)
McFarland Gas Ring vs. Standard (135 replies)
LMT Enhanced Bolt Question (52 replies)
RRA's Grips... (14 replies)
Muzzle Breaks, Suppressors and Flash Hiders (60 replies)
FYI - CRANE recall on SPR's (5 replies)
Will black hills 55gr .223 rrun in a 10.5" MRP??? (10 replies)
Feed Ramp/Cleaning Question... (13 replies)
How do they rate? (15 replies)
Dust Cover or Un-cover? (8 replies)
VLTOR Receiver Extension w/ Storage? (6 replies)
6.8 BCG (2 replies)
low profile gas block (17 replies)
Sabre Defense Question (36 replies)
Pinning a Larue Gas Block (4 replies)
Primer popping (24 replies)
SBR buffers (6 replies)
Differance in hammer springs (1 replies)
buffer tube (2 replies)
FSB Installation Jig? (1 replies)
Barrel Options (3 replies)
Magazines Currently In Production... (3 replies)
Bolt Carrier question (9 replies)
CMC trigger pack (21 replies)
Iron Sight Users... KNS Sight Post!! (6 replies)
Upper/barrel ID (0 replies)
Carbine Rail Systems Advice Needed (15 replies)
30 round magazine improvements (29 replies)
pros & cons of 1, 2, and 3 point slings (7 replies)
$50.00 Stripped upper recievers!!!! (0 replies)
BFG Vickers Sling Info... (8 replies)
Colt pencil barrel and a suppressor (9 replies)
MI BUIS Questions and My Uneducated Review (5 replies)
Bushmaster m4 problem (7 replies)
Bolt Carriers (8 replies)
Ultimate Reliability for Colt 6920.... (51 replies)
6.8 ? on bolt small parts (2 replies)
POF P-415 Upper? (3 replies)
Barrel profile question. (25 replies)
Is my Barrel Chrome-Lined? (8 replies)
Upper & Lower Alignment Problem (20 replies)
Newbie Question (6 replies)
recoil spring life span? (64 replies)
DD Rails for POF-USA 416 a no go! (5 replies)
M4 bushmaster(civi model) rear sight too to left how to fix? (11 replies)
gas tube question. (3 replies)
AR Basics..New to the AR Platform (14 replies)
Removing front sling swivel (5 replies)
Buffer Tube Installation Question (0 replies)
Key Staking (22 replies)
MI QD rear sling Attachment plate (1 replies)
Bolt & Carrier Questions (45 replies)
Magpul M93 series Rubber Buttpad install (14 replies)
Wolf Performance Ammo (.223) (6 replies)
Magpul M93 Striker Plate and Rubber Butt Pad? (16 replies)
Bullet Path Graph (0 replies)
Carbine Stock Systems (43 replies)
Shims for MagPul M93B stocks? Other questions! (5 replies)
Trigger guard roll pin (3 replies)
A looney idea involving crowns... (4 replies)
Questions on cutting down barrel (8 replies)
zeroing problem (2 replies)
scope mounting problem (9 replies)
upper take down pin holes specs (0 replies)
Gas vs. Piston Accuracy? (3 replies)
New trigger parts, what do you do to them? (7 replies)
Any real good reason to have feed ramps in a semiautomatic 6.8? (2 replies)
effective range of 11.5" rifle (6 replies)
6.8 SPC, is it worth making the switch? (18 replies)
MGI Hydra (7 replies)
What else does a Broken Bolt Break? (2 replies)
MI Continuous Forearm (5 replies)
Gas Block Question -- coping with old taper pin cut where set screw hits (0 replies)
Command Arms stocks? Quality? (18 replies)
Upper Questions (3 replies)
Gas Blocks (11 replies)
Any experience with YHM EoTech mount? (4 replies)
Post Float Accuracy Problem ? (8 replies)
18in. SS or 16in. SS for LMT MRP (13 replies)
Colt AR6520s Are Shipping (7 replies)
Broken Bolt (8 replies)
Help me spend some $$$! (5 replies)
Fitting Carbine Stock to Colt Sporter, Full-Sized Stock? (3 replies)
What is the standard issue M4 configuration? (5 replies)
My AR Build Parts List (32 replies)
Which upper and lower recieviers are Type III anodized? (9 replies)
Gas Leak, FSB. Re-Pin? New? (1 replies)
Does anyone know the length... (4 replies)
KX3 - Are they usually tough to thread on? (4 replies)
LaRue Tactical Billet Upper (3 replies)
Quick question -- Larue rail improvements? (6 replies)
Pre-Ban, Post Ban...does it matter to me now? (2 replies)
LMT enhanced bolt/carrier group (5 replies)
Need recommendation on AR spring/field repair kits (13 replies)
Extractor spring broke. AGAIN! (8 replies)
Help, you put the fear of god in me. M4 Feedramp (5 replies)
FSB Replacement (4 replies)
Technical question on bolt cycling. (12 replies)
Removing carbon.. (4 replies)
Seeking Recommendation For Compensator (8 replies)
Buffer suggestion for AR (6 replies)
Weights Measurements (6 replies)
Barrel play in upper receiver (8 replies)
6.8 full auto videos (0 replies)
Buffer tube lock nut..? (13 replies)
What is the proper "break-in" procedure for a chrome lined AR barrel? (8 replies)
DD Lite Rails (5 replies)
New here, looking for barrel identifcation (10 replies)
Upgrading parts: better to do once, or bit by bit? (7 replies)
Chip McCormick trigger install help (12 replies)
Colt MT6400C vs. Colt 6920 (76 replies)
Wolf 6.5 Grendel Preproduction Preview (10 replies)
colt trigger question (6 replies)
Problem with new upper. (11 replies)
Pistol grip screw? (12 replies)
Best lower parts kit/lower build (7 replies)
Follower differences - 5.56, 6.5, 6.8 (3 replies)
Replace stocks M-4 (7 replies)
Which flip up rear sight? (21 replies)
Ejection Problems on Bushmaster M4 (35 replies)
How much torque/energy does a 40mm LV produce? (1 replies)
LMT 10.5/KAC Medium FF RAS/KX3 combo (7 replies)
'Old' Colt trigger pins ? (3 replies)
Receiver Flex Testing III - Full Disclosure (10 replies)
Home-Rolled Trigger Job? (12 replies)
Coming Soon... LaRue Stealth Upper and DD 9.0 Lite Rail Reviews. (15 replies)
Weight of H2 and H3 Buffers? (7 replies)
anyone try a miwest industries #20 forend? (9 replies)
Superior Arms lowers quality? (5 replies)
Gas Port Pressure v. Barrel Length Curve? (13 replies)
Parts Questions (3 replies)
Colt match trigger Q (3 replies)
New user- Installing new uppers (4 replies)
.875 ID gas block question (4 replies)
Bolt carrier key...(help a newbie) (2 replies)
SAM-R front sight ? (8 replies)
Good 2 stage match trigger (2 replies)
Rear Takedown Pin Tightness (9 replies)
Lets talk about 10.3".. 5.56 barrels. (12 replies)
Otis Gun cleaning kits? (13 replies)
Flash hider over-torquing? (4 replies)
Why did, or will you choose the 6.8? (104 replies)
Reloading Mis-adventure (10 replies)
FTE caused by ammo? Need advice (14 replies)
Bolt Help (4 replies)
Magazine maintenance (3 replies)
Who made this upper? (3 replies)
Staked Carrier Question... (22 replies)
Blind Pinning a Flash Hider (8 replies)
Gas port Sizes (26 replies)
Options on removal of the sear block in a Colt (13 replies)
When to install the flash-hider (2 replies)
Problems with tango down pistol grip install (24 replies)
Dust Cover Rod Slippage (6 replies)
Bushmaster Carbine - Change Parts? (39 replies)
Gun logbooks (1 replies)
M4/M16/AR Technical Operating Link? (5 replies)
Barrel Lengths (7 replies)
**dealers help!!!!*** (14 replies)
Feeding Problems w/ 6.8 Upper -Help (33 replies)
Brass Ejecting question (3 replies)
Arrrrr, short stroking, mateys! (28 replies)
LMT Enhanced bolt (311 replies)
What is the real deal on the ARMS 59M (18 replies)
"Proof" load - 6.8mm SPC? (4 replies)
Hydraulic/Mechanical Buffers (10 replies)
New type RRA 9mm Buffer (0 replies)
Has anyone done this... (4 replies)
CMT upper reciever problem. (3 replies)
Muzzle Break (6 replies)
What is so special about 17-4? (23 replies)
Permanant FH attachment? (5 replies)
Buffer / Bolt Carrier Weight Combinations (6 replies)
Bbl question to BigBore (2 replies)
Colt Bolt Question (1 replies)
Carrier key bolts and staking. (16 replies)
can anybody clear up a Larue rumor for me (39 replies)
Barrel Contours? (7 replies)
VLTOR stock / SP1 carbine question (2 replies)
Chip McCormick Super Match Triggers ? (10 replies)
Cold hammer forged barrels (75 replies)
Must Have Tools (14 replies)
H2 or H3 buffer? (132 replies)
Upper Differences ? (16 replies)
Methods of assembly -- question about gas port alignment (24 replies)
Buffers & springs ???? (2 replies)
Geissele FCG Upgrade kit (1 replies)
Ammo for 11.5" barrel? (2 replies)
canted front sight question (17 replies)
Bolt Shear (26 replies)
Larue Gas Block (2 replies)
Barrels 101 (87 replies)
FF Rail Panel question (6 replies)
Front sights sticking way up (7 replies)
seeking "tall" flat top flip up front sight BUIS (2 replies)
DD handguard question. (10 replies)
Weird upper problem (19 replies)
Mk18 "Clone" -- Can a civilian build one? (9 replies)
MPI Tested (48 replies)
noveske kx3 (46 replies)
HK AGL and KAC URX (4 replies)
PWA Lowers? (7 replies)
Early 6.8 mags and upper (8 replies)
Blue Force Gear/Vickers Tactical 2 point sling (6 replies)
Billet? (15 replies)
Refinishing a barrel (21 replies)
Suppressor Damage -- courtesty of KevinB (6 replies)
Do you need Gas Pistons... (67 replies)
Bolt thrust? (5 replies)
Pig Tail Gas Tubes (7 replies)
6.8 mm history in SGN (11 replies)
Gelatin Testing to FBI protocol (6 replies)
Having trouble with buffer... (1 replies)
Receiver Lock Plate Staking Tool? (16 replies)
Noveske barrel rifling (15 replies)
Where to find a set of tech dwgs and Specs? (2 replies)
Semi vs Auto Bolt Carrier Group (2 replies)
Painted barrels and heat (13 replies)
HD extractor springs & CRANE O-rings (202 replies)
Bbl length? (14 replies)
SS vs Chrome Lined for General Purpose Use (16 replies)
MK 12 Mod 0 or Mod 1 clone build (67 replies)
Heavy buffers, hydraulic recoil buffers, Tubb cws and velocity (2 replies)
Does anyone else have this problem. (10 replies)
AR Tools - What are the essentials? (25 replies)
Royal Purple (5 replies)
Hoppes Elite (4 replies)
Excessive high/low elevation causes? (8 replies)
AR Match Triggers? (20 replies)
Need help diagnosing a problem with my rifle... (30 replies)
AR spring replacement intervals? (16 replies)
How SLOW will your AR run ?? (1 replies)
M4 Feedramps (88 replies)
In Search of a Tool ! (10 replies)
AR platform Improvements? (18 replies)
Short Stroking (20 replies)
Forward Assist? (30 replies)
Buffer Tube Basics (62 replies)
After you pull the trigger (35 replies)
Explain improvements gained with a FA carrier (13 replies)