- Need advice on salvaging a hack job.
- When to use an extra power spring?
- What is considered "out of spec" front sight adjustment
- DPMS Oracle gas block size??? Anybody know?
- LMT FSB stuck on barrel
- SR-15 Mod1 Upper not locking back on the last round
- DD Lite 12 to SLiM 12
- Does shooting position affect Zero?
- Samson Evo rail on Oracle
- Linear Comp and Buffer choice
- Longest Rail you can use on a 12.5 and get a can on it?
- PSA drop in carbine rail, opinions?
- Looking for Flash Hider with Good Recoil Compensation
- 10.5" Bolt of base malfunctions
- Griffin Armament m4 SD-K
- Magpul BEV block not fitting new "BCM4" receiver.
- 35 Muzzle Devices Tested
- Colt 6720 Barrel Change for SBR?
- Bravo Barrels - SS410 vs BFH - Objective Measures?
- Troy Delta Battle Rail?? Anyone have input?
- FNH USA hammer forged barrels?
- Consistently Grouping Poorly
- Receiver Extension Indexing Channel and End Plate Tab (Thread damage on installation)
- Info needed on adjustable gas blocks
- BCM Gunfighter Stock Disassembly
- Advice on salvaging barrel
- Any ideas on cutting down a Troy Delta rail?
- Geissele Mk8 compatible with KAC mod 2 SR 15 ?
- Masters thesis: "An Evaluation of Gas Systems for the AR15 / M16 Platform"
- Opening up gas port
- Help! Ejection issue after chambering live round
- ubr stock ?
- HK Metal GI style mag not seating high enough?
- Fsp keymod identification
- Bolt Carrier exhaust vent size variations
- Anybody built around a Noveske barrel recently???
- TR-Enabling LPK?
- Weird custom build. 20" barrel, carbine length gas
- Changes to New Noveske Gen III Rifles
- Carrier Weight, Buffer Weight & Spring Power
- study of barrel length effects
- AR bolt design
- Geissele Reaction Block
- Adams Arms 11.5 tactical evo piston upper
- Servicable Trigger Spring?
- Ejector swipe
- New Build Jamming. Pics Included.
- Extraction issues with brand new upper
- 11.5 barrel port size
- Out of Spec LMT MRP Upper or Tolerance Stacking?
- .223 Wylde headspace gauges
- 18" rifle gas SPR build not locking back/cycling.
- Help me ID this Bolt & carrier "MP AF" - More pics on pg 2
- Optimal port size on a 10.5 inch barrel
- Barrel Installation Question (Barrel nut torque and indexing)
- Ruger SR556: Cases sticking in chamber
- 100% PSA 20": Short stroke, sight adjustment questions
- A2 Carry Handle Upper Questions
- Trouble with ftes
- Advise which grease I should use....
- Gas Block Internal Diameter, How Big is Too Big?
- Adj. gas block vs heavier buffer for suppressed use.
- The VLTOR A5 thread - what doesn't it work with?
- Gas block
- Buffer and spring use for 10.5" bbl
- 7.5 ar pistol (new) bolt wont lock back last round
- Charging Handle Binding
- Painting the decals on my AR
- Did I get the barrel profile I ordered?
- New Colt LE6920 - "Non-Typical" Castle Nut
- Handguard from china airsoft?
- Issues with ambi safety
- Vtor A5 buffer weight question
- Gettting the right torque with the Borka tool
- How hard is it to straighten a compensator?
- is it a les baer? if so why doesn't it work?
- Lighter buffer for BCM MK 12?
- Lower Receiver Concerns
- Aluminum gas block
- 5.56 bolt vs. 6.8 bolt
- Seekins rail install gone possibly wrong
- BCM gas block removal/ADCO
- Dented brass... is this a problem?
- With no flash hider - What happens to noise level?
- A simple calculation to help find the best buffer/spring combo
- A Work in Progress: Mounting a Light to a Slim Line Handguard
- Firing Pin Material?
- Over-pressurized 14.5?
- Short stroking
- AR-15 DI to piston conversion?
- Inducible FTF
- DD Mk12 Ops Inc compatibility?
- Issues/ help me save money
- mft tactical magazine
- Constant double feeds
- Sbr'ing a 6920?
- Loose bolt catch?
- KNS pins with Wilson Combat TTU?
- 4th rail switch, potential upper receiver issues?
- Geissele 13 SMR MK4 and M-Lok
- 1st build, Light buffer question
- FTF issue
- Failure to Feed
- More elevation out of Magpul PRS Stock
- DDM4v5 Rail install
- stupid gas block question
- Muzzle blast diverters
- DD SLiM rail flex?
- I got the Bolt Carrier Lock-Back Blues
- LaRue Handguard Gas Block Question...
- KAC URX 3.X Locking Issue
- Dissapator gas port size
- Daniel Defense pinned gas block comparability ?
- Lightweight rail system
- Actual benefit of 11.5 over 10.5 and A5 buffer over carbine?
- Strange spots on lower.
- Grip thread not tapped correctly?
- NSR availability
- Barrel Identification?
- Failed on Clymer Go Gage
- Which is the better barrel for a dedicated suppressed build? + BCM barrel question
- PRI or AA ff tube?
- Steps to correctly assembling upper?
- Maybe I just wasn't meant to build Ar's
- Adj. gas blocks & different barrel lengths - does it matter?
- Cryo treatment results?
- Looking for a Daniel Defense Omega X/Modular Float Rail Wrench
- Need some help to ID two BCG
- Help identifying Adams Arms barrel
- Upper to lower fit too tight
- Any Reliable 12.5" Mid length barrels running around
- Barrel doesn't like the suppressor
- What causes vertical stringing?
- First incomplete lower questions
- LWRC compatible rails?
- Differences in Brass Deflector Swipes
- ares scr1 anyone have one?
- Colt BCG worth it over AIM?
- RIS II rail question
- Syrac Gen II reliability?
- Ever heard of...
- I Need A Rail For 7.5" Barrel With QD Suppressor Mount
- Have you ever seen a scratch like this?
- Lyman Digital Trigger Pull Gauge
- NiB BCG Gas Key Leak - Is plating the screws and threads a bad idea?
- Intersting COLT upper receiver feature
- Colt LE6920 first failures
- Front Sight Assy Straight Pin woes
- Problem with BUIS
- Radical adj. gas block - any good?
- KNS Hammer Cage tool
- Can you wear out an upper's threads?
- Colt 6933 Commando Uppers
- Out of spec or tolerance stack up?
- Tool upgrades: MOACKS Plain and .223 / 5.56 chamber gage
- how would a supressed 16", mid-length gas, barrel run?
- Santan tactical ??
- accumulation tolerances
- Problem taking FSB off BCM upper (not taper pin problem)
- Can't get DD Gas Block Taper Pin to Budge!!!!
- C-product mag problem
- Colt BCG marking.
- AR-15/M16 Hammer/Trigger Pin Material Specs?
- What sized gas port?
- RGuns bolt catch punches...
- Upper Receiver Skeletonizing... uhm
- Re-coating a Lower
- Re-coating an AR lower
- Build Question....
- What buffer/spring combo should I be using?
- AR Ejection issue (?)
- Gas piston conversion
- How much do megalithic uppers improve accuracy?
- Am I looking at a gas block problem?
- COLT Buffer Tubes? Are they all 4 position or do they have any 6 position tubes?
- Brand new SBR had lots of failures today. Why?
- Shaved FSB Question
- Dimensioned Drawing of Bolt?
- BCM 16" Mid Length Gas Port Size
- Friend's AR went KABOOM yesterday - Pics
- Passivated finish for stainless steel barrels
- Magazine seam weld looks crappy ---- need your input
- Bolt won't lock on last round, input and suggestions!
- Raptor Malfuntions... Anyone else?
- Round won't chamber when charging with handle, but load with bolt release?
- BCM 16" Mid-Length & H3?
- Hypothetical: What Still Needs Fixing?
- SIG M400 SRP
- 18in BCM SS410 barrel experiment.
- UPDATE 7/2 - Can a Carbine Require a "Warm Up" to Function Reliably?
- Problem with my Spikes SBR
- ALG EMR V2 question
- Please Help Me identify this unmarked Barrel.
- Gas Block / Piston Upper - Interesting TI
- Legit CASV-M rail? And other questions
- Bolt clearance?
- Non-dimpled Barrel and Set Screw Adj Gas Block Install - Advise
- Sleeving Uppers
- POF Ultimate BCG
- Question about DD Lite/M4 handguards
- Constant malfunctions
- Colt OEM steel AR15/M16 magazine
- What is it called
- Which Is The Better NiB BCG: WMD NiB-X or Fail Zero?
- Front Sight Post Size Help Please
- Would you first adjust buffer weight/spring rate or gas for tuning?
- Receiver Extension Rotates
- Saturn barrel vise?
- Is this ledge normal?
- 11.5 not cycling when unsuppressed
- Incase you want to make your own parts. (3D Printer)
- New LWRC AR/M4 Ambidextrous Charging Handle
- Barrel Length, Accuracy and Distance
- Battle Arms Development -Barrels
- To weld, or not?
- Centurion C4 & URG top rails wont line up
- My gun won't feed
- Removing DD flash hider?
- Installing A2 Front Sight
- Two Seperate BCM BCG's w/ FTE
- Just balked my Ejector Roll Pin...
- Key mod accessory installation
- Do we have a database on what hand guards fit over what gas blocks?
- Problem with a new BCM lower
- Breaking in a barrel
- Faxon Firearms 18" Gunner profile barrel w/ rifle gas
- Silver Solder a muzzle device on a melonite treated barrel?
- I need the exact measurements on a DD Rail
- 1 lower dedicated to multiple uppers
- USGI 10.3" URG upper build
- Has anyone tried scoping an SR-15E3 for distance shooting? How'd it go?
- 16" pencil barrel
- Colt 6720 tritium front sight post?
- 9310/QPQ, A better Bolt?
- Surefire 3P Eliminator
- Armorer's wrench
- Colt Upper Receiver Markings Question
- Alg defense trigger reset
- 9.5" v 9" handguards
- What are the differences between various CHF barrels on the market?
- Let's Talk About "Accuracy"
- Don't believe everything you read (Pic added)
- First post and all... Barrel types and specs
- TDP
- What buffers/springs to buy
- Define: AR-15 and M4
- Colt Side sling swivel roll pin size question
- Forward assist with no "lip"
- Is their any rational behind using thread lock on a AR pistol buffer tube.
- Timing muzzle device: shaving down back vs peel washers vs crush washers