Glock 17 with lands and grooves?

Cheapshooter · November 22, 2014, 11:07 AM

Just bought a used G17 Gen3. I thought all Glocks had the polygonal, or hexagonal rifling. This one has Trijacon night sights, and obvious lands and grooves rifling. The barrel is marked with the Glock logo, and a serial number matching the frame.
Did they make some with land and groove rifling?

DPris · November 22, 2014, 11:16 AM

Depends on what you're calling lands & grooves.
Glock factory rifling has, essentially, lands & grooves in appearance, just well-rounded "lands".
Denis

Uncle Malice · November 22, 2014, 01:00 PM

All factory barrels are polygonal rifling. Is the barrel hood actually stamped with the Glock logo and serial number?

T. O'Heir · November 22, 2014, 02:12 PM

And all of 'em have lands and grooves. It's how those got there that's not the same.

**JohnKSa** · November 22, 2014, 02:33 PM

All Glocks have polygonal rifling. Either hexagonal or octagonal depending on the caliber.

Looking at the inside of the bore can be a little confusing because the appearance will be of a fairly typical rifled bore that has very rounded lands. If one looks just at the muzzle where the rifling meets the crown, or at a fired bullet gives a more accurate picture of the actual rifling profile.

The picture below is of the muzzle of a Glock 17 barrel.

The picture below is of the base of a bullet fired from the barrel in the picture.

DPris · November 22, 2014, 02:52 PM

You still catching those display bullets in your teeth, John?

Denis

**JohnKSa** · November 22, 2014, 03:25 PM

My dentist made me quit that.

I pulled the one in the picture out of the sand berm at my local gun range after a shooting session.

DPris · November 22, 2014, 10:47 PM

I like my version better....

Denis

November 22, 2014, 11:07 AM	#1
Cheapshooter Senior Member Join Date: December 2, 2007 Location: Missouri Posts: 8,306	Glock 17 with lands and grooves? Just bought a used G17 Gen3. I thought all Glocks had the polygonal, or hexagonal rifling. This one has Trijacon night sights, and obvious lands and grooves rifling. The barrel is marked with the Glock logo, and a serial number matching the frame. Did they make some with land and groove rifling? __________________ Cheapshooter's rules of gun ownership #1: NEVER SELL OR TRADE ANYTHING!

November 22, 2014, 01:00 PM	#3
Uncle Malice Senior Member Join Date: May 11, 2009 Location: Phoenix Posts: 4,580	All factory barrels are polygonal rifling. Is the barrel hood actually stamped with the Glock logo and serial number? __________________ Handguns: 2x Glock 19.4 \| Glock 26.4 \| HK USP 9 \| HK P2000 \| HK VP9 SK \| HK P30 \| CZ Shadow 2 \| CZ P-10 C \| CZ P-07 \| CZP-01 \| S&W 360PD Rifles: DDM4 \| SGL 21 \| SAM7K \| Draco \| PSA PDW SBR \| ASA Side-Charger SBR \| CZ Scorpion K SBR \| Aero M4E1 9" 300blk SBR \| Angstadt Jack9 SBR \| Savage Mark II FV-SR Shotguns: Mossberg 590A1 20" SP \| Mossberg Shockwave

November 22, 2014, 02:12 PM	#4
T. O'Heir Senior Member Join Date: February 13, 2002 Location: Canada Posts: 12,458	And all of 'em have lands and grooves. It's how those got there that's not the same. __________________ Spelling and grammar count!

November 22, 2014, 02:33 PM	#5
JohnKSa Staff Join Date: February 12, 2001 Location: DFW Area Posts: 23,580	All Glocks have polygonal rifling. Either hexagonal or octagonal depending on the caliber. Looking at the inside of the bore can be a little confusing because the appearance will be of a fairly typical rifled bore that has very rounded lands. If one looks just at the muzzle where the rifling meets the crown, or at a fired bullet gives a more accurate picture of the actual rifling profile. The picture below is of the muzzle of a Glock 17 barrel. The picture below is of the base of a bullet fired from the barrel in the picture. __________________ Do you know about the TEXAS State Rifle Association?

November 22, 2014, 03:25 PM	#7
JohnKSa Staff Join Date: February 12, 2001 Location: DFW Area Posts: 23,580	My dentist made me quit that. I pulled the one in the picture out of the sand berm at my local gun range after a shooting session. __________________ Do you know about the TEXAS State Rifle Association?

November 22, 2014, 11:16 AM	#2
DPris Member Emeritus Join Date: August 19, 2004 Posts: 7,133	Depends on what you're calling lands & grooves. Glock factory rifling has, essentially, lands & grooves in appearance, just well-rounded "lands". Denis

November 22, 2014, 02:52 PM	#6
DPris Member Emeritus Join Date: August 19, 2004 Posts: 7,133	You still catching those display bullets in your teeth, John? Denis

November 22, 2014, 10:47 PM	#8
DPris Member Emeritus Join Date: August 19, 2004 Posts: 7,133	I like my version better.... Denis

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