- F Marked Front Sight On A A2 Upper???
- Upgrade to H or H2 buffer?
- Changing the rail?
- When did Colt start doing HPT & MPI testing
- upper receiver for build
- KAC SR15 Buffer
- DD Omega installation question
- Strange double feed
- Best way to remove aluminum heatshield on A2 Full Length hand guards?
- OAL of 14.5 Upper w/ BC 1.5
- New KAC E3 Bolt Questions
- replacement extractors
- Need help installing Specter Gas Block.
- Geissele 3GS/SSE Comparison
- ejection help
- SR 15 E3 Gas block Q?
- H buffer or Spikes ST-T2 on a 14.5" middy?
- del-ton and milspec?
- 10.5 has extraction and rechambering issues
- Heavier buffer results in M4 16"
- AR-15 barrel nut dimensions?
- Building a upper on Grant's site, am I missing anything?
- Bulged Barrel?
- Gas to Piston
- Looking to reconfigure one of my guns.
- Forward assist retaining pin
- Handguard installation
- Charging Handle Stuck
- Failure to Extract
- Midlength Gas System - Spring/Buffer Question
- Barrel Flex?
- Buffer tube is now loose
- Re-install a Delta Ring?
- Frames per second needed to watch AR operating system in action?
- new barrel need fsb drilled
- I Think It's Under-Gassed?
- BCG question.
- Gas key staking pictures..
- Questions About LMT Enhanced Carrier & Bolt
- Brake indexing: crush / peel washer
- Build question regarding buffers and BCG
- trx extreme dissy?
- fouling with a short gas system.
- piston design evaluation...need help picking my first ar.
- Castle Nut...
- 1:7 or 1:9
- Barrel Indexing/clocking question
- S&W 15T and possible short stroke w/ Wolf
- Removing set screw gas block?
- Simplest way to remove/replace ejector?
- H&K ar-15 magazine fit?
- colt ll field gauge
- DPMS- What is left to do to make "battle worthy"
- grinding fsb
- Technical Question about bolt lug wear/stress between piston and DI gun AR15's
- Question about upper interchangeability
- Ace Skeleton Stock install without new screw
- Break-In Specific Lube?
- LMT BCG and MIM gas keys.
- Help on carry handle identification
- Defective Disconnector?
- Vltor A5 Receiver Extension, Spring and Buffer Kit on a MK12?
- Receiver Extension Help!
- Discussion on BCG finishes
- Switchblock and Mega Mono Upper
- Nicked barrel threads: Send off to a pro or use a barrel rethreader?
- Vertical Grip
- Matech sight lock detent problems
- Smith Enterprises 9mm Vortex F/H
- Sheared barrel index pin
- A.R.M.S. #50SC Bi-Level S.I.R. System - Plastic?
- 14.5 inch barrel with DD 12 inch FSB rail and blackout--will my suppressor mount?
- Vltor A5 stock question
- Magpul UBR Question.
- Barrel Swap-out
- DD Omega X problem on Noveske N4 lower?
- Broken Feed Lip on PMAG
- IWC's New QD Mount for Troy TRX Extreme... Coming Soon!
- 16" barrel with a rifle length gas system??
- QD indirect airflow heat shield
- Green Mountain AR-15 Barrels?
- DD M4v3 Zeroing Issue- *UPDATED*
- BAD Lever + 16" Middy = Bolt Lock Issues *What I Found*
- Gas tube rattle
- Stag Arms 2HTL Upper Shorty Review for us Lefties! Pics inside!
- Building Upper question
- installing pinned fsb on stripped barrel
- feed ramp debate
- Failure to cycle.........
- Light Primer Strike
- Spike's Tactical selector slightly loose, replacement from them didnt help
- AR15/AR10 Comparison
- Scope mounting with a fixed front sight
- Ops brake/collar install on BCM barrel?
- 5R Rifling ?? Opinions - Info
- Yet another twist question - sorry
- Shim Guide for AAC Blackout Muzzle Brake Suppressor Mount?
- BAD Lever Bolt Lock Issues... Cut Spring?
- Definition of rail cant?
- VLTOR MUR ejection port cover???
- Flash hider will not thread in all the way?
- New stoppage encountered today... for me at least
- light weight barrel questions
- wobbly Ar furniture
- New Wilson Combat TRIM Rail System
- Chrome silicon vs. Stainless mag springs
- Giessele SSA-E question
- Pencil Barrel Lifespan
- Loose gas block...
- Troy MRF rail screws
- Forend Rail options
- Can I Install a Gas Block (without screwing it up....) ?
- Bulged Barrel Replacement--Barrel Extension Question, Etc.
- Troy TRX Extreme: 11" vs 13"?
- Rifle Stock & Buffer Questions
- Muzzle Devices and Torque
- Front Sight Base With "Z"
- More powerful buffer spring?
- Which KNS Precision Anti-walk pins?
- Troy TRX Extreme 13" availability?
- Noveske Gas Tube Install NOT GOING GOOD HELP NEEDED.
- Shooting Suppressed - PRI Gasbuster or BCM Gunfighter?
- sully stock and UBR comparison
- Bolt swap question
- Parts Sizes and Dimensions
- KX3 Line Up PICTURES ADDED
- How bad did I screw up my lower?
- BCM Bolt Assembly vs Noveske Bolt Assembly
- Lower question
- Relocating Gas Port
- Colt MT6400C Bolt Carrier
- ABC
- re-pinning front sight base?
- What is this?
- Colt 6920 Pin Size and serial #'s
- Colt bolt problem?
- barrel flex with Larue Handguards
- FTF issues?
- Stock detent spring/detent
- Centurion Hammer Forged Barrel
- Gas port size
- Front Sight Towers....
- gas systems versus buffers and springs
- LMT MRP Piston Help
- Lower buffer pin and spring - What is going on?
- 5.56 vs .223
- Gas Block
- RRA Chrome NM Trigger
- Effects of dwell time on reliability with 14.5" vs 16" middy
- Gas Key Staking
- Broken BAD Lever and Resulting Problems
- FailZero Bolt Question/Problem?
- Has LMT said anything about the new coating on their enhaned BCGs?
- 16 inch with Ops Inc. 12th Profile?
- Shaved and Cut in Half FSB
- take down spring, pivot spring and safety spring the same?
- Nitride barrel finish.
- Who manufactures M16 headspace gauge
- Cockeyed 6920 Carry Handle Sight
- Refinishing high end barrels
- Colt Match Target M4............Bbl. Question.
- Buffer Spring length Variance
- Problem with Mega Billet Upper and TRX Extreme
- Lower receiver comparison chart
- Can I replace a Troy rail with a TRX Extreme without taking off the FH?
- Failure to Fire Problems
- custom builds. Whats it all mean?
- Now I know it does that . . .
- Pmag FTF?????
- LaRue 9" rail installation
- Clean-up metal shavings
- Excessive play in forward assist or normal?
- CMMG MOD4SA Wasp Bull Barell Quad Rail
- New bolt carrier from PWS
- Bringing an RRA AR up to spec.
- Vltor upper
- A2 grip alignment / gap concerns
- Status of NEW Comparison Chart of Commercial M4-pattern carbines
- Fun fact re: replacement buffer retainer spring
- Piston kit and LaRue handrail
- Take down pin issue
- Question on DD Omega rail
- Carbine or H Buffer?
- QUESTIONS ON MARKINGS.
- BCM 14.5" Midlength vs. Carbine
- VLTOR A5 buffer system/11.5 SBR.
- Daniel Defense barrel question
- AR ejection issues?
- 14.5 midlength/failure to lock back
- Feeding problem
- Gunsmiths/Shops that can remove a pinned FH without destroying it?
- Installed a SDC what did I do ....
- welding keys, instead of staking?
- Smith & Wesson Lowers not PMAG friendly?
- "Drop In" Pinned Low Profile GB
- AAC Brakeout Installation
- Should barrel be perfectly centered in rail?
- Legit Barrel Question
- Castle nut staking setup?
- I can't get my Ace Skeleton stock off
- Failure To Go Into Battery. But Why..?
- which gas blocks use?
- Is it "bad" to shoot 55gr with 1:7 barrel?
- Free Float Tubes?
- A2 rear sight question
- Is the "MYTH" of the cycling trigger pulls really a myth???
- Barrel nut question, and pinned flash hider-help
- Feeding problem
- centurion arms communication
- Anyway to mount a fixed front sight to this barrel with this hand-guard?
- Pitting on the bolt?
- Question on common bolt lock culprits
- gas port size
- taperd rail section for rifle length a2 handguards?
- Rattling gas tube in upper...
- Broken Magpul trigger guard screw.
- Alignment question concerning my new Stag 2TL
- How long is a KAC buffer spring?
- So I took various buffers and springs, and a notebook to the range..
- Is this Possible
- AR gas system: mid or rifle? (16" or 20")
- Colt ban-era muzzle brake removal
- Tango Down BG17 grip and SCAR railcover review
- Vltor .625 clamped Gas Block will not fit under 12" DD lite rail weight results
- Reece Vs HBar?
- Understanding Cyclic Rate
- Vltor recommended torque setting for gas block
- gas impingement to piston
- Gas port sizes...6920 vs. 6921
- TDP for Gas Port....
- LMT MRP Issue
- Developing a reasonable testing protocol
- malfunction and ammo question
- Flash Hider Removal
- Gas block to barrel fitment
- selector filing for geissele trigger
- bending geissele trigger legs
- Rifle Free float Two Piece Handguard
- LMT CQB MRP barrel swap function - advice
- Intermediate gas system owners ITT.
- Changing carbine tele stock to full sized stock
- Pressure/Temperature of 556 Nato?
- Safety selector tension.
- Elevation Dial on LMT BUIS
- DPMS Lower, Decent Lower Parts Kits?
- why does this sort of malfunction occur?
- Need HELP! Gas system issues.
- Trigger Pin....
- Round vs. Diamond rear iron sight.
- KAC change out Buffer ?