- Low profile gas blocks
- CMMG Bolt-on high Gasblock alignment with FF rail?
- How common is it for an upper not to fit a lower?
- Hi
- Free float rail installation with handguard cap?
- Daniel Defense owners who have installed a MOE pistol grip
- Source for .7556 low-pro gas blocks?
- Barrel movement?
- Lower Receiver End Plate Spring
- Sealant between carrier and key?
- Receiver nut torque.
- A2 with M4 ramps? can you machine them?
- Spikes M4LE issues with 223 ammo wtf
- Colt M4 Carbine 6920 front sight removal
- A2 Flash Hiders and Accuracy
- How hard is it to properly pin a compensator?
- Carry Handle help
- 5.56 barrel with larger caliber muzzle bevice
- BCM barrel length inconsistencies
- Changing from carbine to midlength question.
- Rail alignment
- Haha Oops.
- Magnesium AR lower
- BCM EAG tactical carbine cycling issues.
- Paint removal on lower
- What would cause this kind of compensator damage?
- Perfectly consistent malfunctions & extractor spring question
- Odd noise with bolt closed
- Skills To Build?
- Hate To Ask: Google Fu Fails Me
- Engraving / Etching / Printing onto a Polymer Lower
- Educate me on barrels please
- URXII (rifle) with Colt M4HB?
- Drop In 12.0 FSP Rails
- Muzzle device swap: what specific tools do you use?
- LMT LM8MRP slick handguard question
- X300U wont fit ar-15
- BCM gas port sizes?
- Issue resolved
- For those of you who Cerakoted, Gunkoted, etc.
- BCG comparison BCM vs Core15
- 14.5 barrel with a2 buffer tube/fixed stock
- Barrel worn out?
- New disintegrating AR bolt!
- Noveske Receiver Extension / Buffer Questions
- Quick question KAC SR-15 e3
- Compensator installation help...
- LMT MRP issues with timing AAC Brake.
- Barrel fowling and accuracy & accuracy testing WOW
- Winchester cases stuck in chamber of M16
- Legit Colt LPK?
- Need help diagnosing problem.. bad bolt?
- Police Trade In LWT Govt Carbine Hammer Pin Hole
- help with guide for cleaning rod
- Additional Vltor A5 Testing
- Buffer Size w/ Adjustable Gas Block
- Screwed the pooch on this one
- What have you lefty shooters done to your AR?
- bolt lock back...
- NSR barrel nut
- Shaved FSB/rail clearance
- Tight chamber in 7.62X39 upper
- Assembly feedback
- Extractor Lift
- Noveske switch block removal
- Extraction issue
- Who has broken a bolt with a mid-length gas system?
- Stag Bolts
- Need assistance with AR malfunction.
- Bolt/Headspace Question
- Gas Block Clearance
- Gas Key Staking
- Rifle Buffer Mods
- Geissele SMR mkIV Barrel Nut: Is this normal?
- Apex Square Shooter Compensator??
- BCG carrier key
- LMT piston bolt carrier "enhanced" cam pin track?
- Interesting issue with my KAC URX 3.1 build
- DD 16'' carbine gas port .055, options?
- What is a shoulder-less barrel?
- battlecomp owners what position do you install comp with emblem facing what position.
- Removing barrel assembling with pinned muzzle device?
- Colt barrel specs
- S&W enhanced flash hider - worth its size?
- LWRC M6SL handguard end cap
- J springs missing
- Weight of Hammer Forged vs Standard vs Standard (Light Weight) Barrels.
- Swapping different AR caliber uppers
- Help aligning YHM gas bock....
- What is the correct way to align this post?
- Failure to lock back after last round
- Brand New Ruger 556E failure UPDATE GREAT CUSTOMER SERV
- Mystery of the Broken FSB Taper Pin
- Issue zeroing new build
- GI Aluminium Specs
- Bolt Wear Issue . . .
- Identifying LMT lower parts
- Noveske NSR and SWS anti-rotation pin; Same Location?
- Unable to remove safety selector lever
- AAC...are you serious?
- Tight magazine well
- WTK: Is this KAC BUIS Defective?
- Hammer Forged Barrels
- POI shift of a front sight on a free float rail?
- BCM 14.5 middy with VLTOR A5 system. Suggestions?
- Stubborn barrel nut
- Severe gas leak
- Cam-pin wear as a contributor to bolt failure?
- DD Omega rail without delta pack/ring
- QD forever ruined
- Critical Failure - Seeking Advice
- Interesting fail today...
- Low profile ladder rail covers...need 'em!
- M&P15T Troy Rail removal
- SBR Kaboom!
- Magazine or feed ramp problem? (photo)
- Trying to understand buffers and springs
- Sadlak Industries LPGB oversized? Issues?
- A-5 buffer: Why is it smoother?
- Tightness in Fire Control area of lower
- MOE trigger guard help
- Bore treatment on a non-chromed barrel?
- Bolt Lug Tolerance/Spec
- Surefire Socom Muzzle Brake Tuning and Performance
- What is this buffer for?
- JP Adjustable Buttplate for PRS Stock
- new barrel, used bolt question
- What's the current state of DPMS rifles?
- NEA Compact Carbine Stock on non-SBR...?
- AAC 300 Blackout upper with HK MR556 lower problems.
- Chrome bolt Assembly vs standard etc
- Blown primers with Surefire Socom 556
- Oly is catching
- KAC owners, did you stake your castle nut?
- Flat Bottomed Free Float Forearms?
- Live cartridge stuck! .. Update! .. Page 4
- 10.5" Pistol upper issue
- Colt bolt assembly differences
- Barrel Nut Torque Question???
- Help me confirm an issue with my zero
- Colt LE69xx series lower forge codes
- Otis rail system.
- ALG FCG fires hammer 50% of time when trigger is released
- You filthy pig!! KX3
- Need an AR manual
- Geissele triggers and KNS ARP's
- Adams Arms/VLTOR A5 fail to eject
- First BCM upper build, possibly my last
- Unmarked AR BARREL ISSUES
- Piston gun gas rings
- upper troubles
- Spikes Tactical FN barrel steel is 21CrMoV511
- upper and lower fitting issues
- KAC SR-16 Pressure Reduction System
- Of bolts and coatings and cuts and tweaks...
- Horizontal POI Shift with ammo change, SR15 upper.
- LMT M4 GUARDIAN question
- Trigger group problem - solved
- Buffer Material Question
- Vltor MUR-1 extremely tight
- I can move to safe with the hammer uncocked. Why? - Resolved
- Strange Issues - BCM even baffled
- Odd jam...Any ideas?
- dumb mistake
- NSR 13.5 rail and BCM 16" upper. Something is crooked.
- Diagnosis check...bolt speed?
- Help w/ intermittent FTE/stovepipe issue
- Larue Rail Machining
- 16" intermediate gas port size
- Bolt catch out of spec?
- Reciprocating charging handles (RCH) vs non-reciprocating charging handles (NRCH)
- Info on ARPerformance 16" LW middy
- Crack or scratch?
- BCM Mk12 and Vltor A5 buffer
- Gas Block Screws
- Brand new SR15 Mod 1 problem
- How well can an AR run with broken extractor spring?
- Deactivating lower without destroying it.
- How reliable are Low Mass BCGs
- Adjustable Safety for Geissele
- Daniel Defense Clamp-On Gas Block
- Who can cut off and re-pin a muzzle device?
- Upper for SP1
- FSB tightness on a new barrel
- Cutting sight off of A2 gas block or new low profile gas block? Advice? Regrets?
- DD HIGH PRESURE TEST
- HK Mr556 + Geissele SSA = fail?
- Muzzle device install
- How to smooth out feed lips on AR mag?
- New build Short stroking issue diagnose
- What's up with the nitride processed barrels?
- Bolt catch roll pin problem
- Odd 10.5 SBR issues
- 6920 SOCOM at 1,000Yards.
- LMT Piston Rings and Other Questions
- KNS Anti-rotation w/ Geissele?
- Bushmaster Carbon 15 Ugh......
- Headspacing issues
- Carrier shift during dry-firing (and I'm assuming live fire also)
- KAC Micro 300m BUIS Question
- Extreme Cold Gas System Operation
- BCG binding in upper
- BCM midlength gas ports: 14.5" vs. 16"
- Sporadic FTF's
- Misfire central...Check out the dents on this brass
- Removing dimpled style castle nut off of SR15 (or how I destroyed the wrench)
- Do I need a new bolt?
- Help me diagnose this malfunction
- Bolt Carrier Question
- 16" Middy barrels with rifle feed ramps
- Grip screw torque value: creating a max specification?
- Will a shaved FSB fit under a Geissele MK IV?
- M-4 / Carbine Gas Port Modification
- Gas Tube Installation Problem
- Chrome lined barrel break in?
- Quick question about the Noveske Switchblock
- Vltor A5 parts needed for Colt 6920
- Giesselle SMR + Magpul Rail Pieces
- Pronged Flash Hider Question (Vortex vs. PWS Triad)
- Solution to short stroking?
- Polishing Hammer Face
- using a .750 gas block on a thinner barrel
- Understanding compensator nuances (observation of BC1.0 vs BCM)
- Gas tube too long?
- Magpul MBUS rear sight issues
- sight height info needed
- Deep scratches on new reciever
- Grip Screw seized up
- Short Stroking issues
- A2 Buffer tube,6 Position Buffer/Spring,& A Spacer
- Interesting Bushmaster gas port observation.
- 14.5 Middy with a A2 stock
- How does this happen?
- Upper to Lower Fit
- Best way to install barrel?
- Which Carbine Buffer for 18" Rifle-Length Gas System?
- Upper receiver crack
- Barrel extension canted?
- Gas block question
- Tuning Goals
- Carbine length gas with BCM comp
- Taper pins for low profile gas blocks
- Cerakote variance?
- I need help with a detent issue. Hit a road block.
- BNIB KAC SR15E3 MOD1 double feed issue
- BCG gets stuck real bad...
- Adjustable Gas Blocks for 5.56?
- installing Troy Battlerail on a Rock River Arms Elite Operator 2
- LPGB set screw distance
- Any experience with Brownell's line of nitrided SS barrels?