Warning

 

Close

Confirm Action

Are you sure you wish to do this?

Confirm Cancel
BCM
User Panel
troy
RS
GS
geissele
aim
brownells
vortex
laRue
Hit
CA
magpul
SDS
primaryArms
silencerShop
palmetto
VP
bravocompany
skd
jt
fightlite
delton
midwest
JRH
springfield

LAPG
ar15com
primaryArms
brownells
silencerShop
jt
dsa
fightlite
cmmg
palmetto
RS
bravocompany
Pro2A
blackhills
JRH
geissele
CA
SAS
gray
THBRD
springfield
LAPG
Faxxon
bravocompany
cmmg
tnvc
trijicon
TBAC
Users Online2679 Online
bravocompany missing Hydra
Page AR-15 » A2 Builds
AR Sponsor: bravocompany
Site Notices
Site News 2024's Favorite CCW? | PSA Micro Dagger
Archived [ARCHIVED THREAD] - Differences between M16A2 hammers: burst vs. auto
Posted: 2/17/2021 5:54:55 PM EDT
I haven't seen any discussion or info regarding this part. Besides the obvious differences regarding the other NFA fcg components, I've been wondering about this.

M16A2 burst hammer:


Compared to an M16A2 auto hammer:


It's clear that the "hook" on the former is more pronounced, thinner, and protrudes further. Are the two interchangeable? What's the reasoning behind the change? What gives?

Link Posted: 2/17/2021 6:00:06 PM EDT
[#1]
The disconnector surface on the burst hammer is wider so the secondary disconnector....actuated by the burst wheel, has an engagement surface.

A burst hammer will work in an auto gun, an auto hammer won't work correctly in a burst gun

Link Posted: 2/17/2021 6:05:00 PM EDT
[#2]
FA hammer - narrower disconnector ledge, even axle bosses. Burst hammer - wider disco ledge, narrower right axle boss (for burst cam and spring).
Link Posted: 2/18/2021 2:14:38 AM EDT
[#3]
Thank you - that's precisely what I was looking for. That would also explain why some "burst" hammers are also labeled as for auto, but not the other way around.

If anyone has a resource for further reading on these types of minute technicalities, please let me know.

Archived [ARCHIVED THREAD] - Differences between M16A2 hammers: burst vs. auto
Page AR-15 » A2 Builds
AR Sponsor: bravocompany
Close Join Our Mail List to Stay Up To Date! Win a FREE Membership!

Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!

You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.


By signing up you agree to our User Agreement. *Must have a registered ARFCOM account to win.
jt
CA
blackhills
silencerShop
palmetto
gray
ar15com
JRH
Faxxon
SAS
fightlite
geissele
LAPG
brownells
LAPG
dsa
Pro2A
cmmg
bravocompany
primaryArms
RS
THBRD
springfield
missing
AR-15 AK-47 Handgun Precision Rifles Armory Training Competitive Shooting General Outdoors Archery Hometown Industry

About AR15.COM

Become an AR15.COM Team Member

AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types.

From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.

Stay Connected

AR15.COM Facebook AR15.COM Twitter AR15.COM YouTube AR15.COM Instagram
Pepperjam Verification

Newsletter

Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more.

Contact Us

Advertising
[email protected]
General
[email protected]

Copyright © 1996-2024 AR15.COM LLC. All Rights Reserved.
Any use of this content without express written consent is prohibited.

AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own.

Advertising Memberships ARFCOM Shop Gear Deals Virtual Weapon Build Discussion Forums Help Privacy DMCA About Your Privacy Choices California Consumer Privacy Act (CCPA) Opt-Out Icon   Goat Signal
** When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs include, but are not limited to, the eBay Partner Network and Amazon.
Top Top