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lower parts
The esophagus, (American English) or oesophagus (British English; see spelling differences) (), informally known as the food pipe or gullet, is an organ in vertebrates through which food passes, aided by peristaltic contractions, from the pharynx to the stomach. The esophagus is a fibromuscular tube, about 25 cm (10 in) long in adults, which travels behind the trachea and heart, passes through the diaphragm and empties into the uppermost region of the stomach. During swallowing, the epiglottis tilts backwards to prevent food from going down the larynx and lungs. The word oesophagus is the Greek word οἰσοφάγος oisophagos, meaning "gullet".
The wall of the esophagus from the lumen outwards consists of mucosa, submucosa (connective tissue), layers of muscle fibers between layers of fibrous tissue, and an outer layer of connective tissue. The mucosa is a stratified squamous epithelium of around three layers of squamous cells, which contrasts to the single layer of columnar cells of the stomach. The transition between these two types of epithelium is visible as a zig-zag line. Most of the muscle is smooth muscle although striated muscle predominates in its upper third. It has two muscular rings or sphincters in its wall, one at the top and one at the bottom. The lower sphincter helps to prevent reflux of acidic stomach content. The esophagus has a rich blood supply and venous drainage. Its smooth muscle is innervated by involuntary nerves (sympathetic nerves via the sympathetic trunk and parasympathetic nerves via the vagus nerve) and in addition voluntary nerves (lower motor neurons) which are carried in the vagus nerve to innervate its striated muscle.
The esophagus may be affected by gastric reflux, cancer, prominent dilated blood vessels called varices that can bleed heavily, tears, constrictions, and disorders of motility. Diseases may cause difficulty swallowing (dysphagia), painful swallowing (odynophagia), chest pain, or cause no symptoms at all. Clinical investigations include X-rays when swallowing barium, endoscopy, and CT scans. Surgically,
the esophagus is difficult to access.
FDE parts I bought for a pistol build before I switched to black.
SBA3 pistol brace, FDE, brand new $130-
sold sba
Magpul FDE trigger guard $10
Magpul FDE RVG $15
Magpul MOE pistol grip, FDE, $20
Seekins FDE mag release button $5
Strike Industries enhanced bolt catches x3 $10ea or $25 for all 3 of them
Lantac ultimate takedown pin set $15 ($27.99 new)
Seekins magazine release buttons x3, all 3 are black $10 ($5.99ea new)
Seekins billet trigger guard $10 ($18.99 new)
KNS trigger pins: Both sold to Wingman33
$15 gen 1...
Selling a new in-package Polymer 80 Lower Parts Kit
Description from Polymer80's website (for compatibility questions/concerns):
"The Polymer80 PF-Series Full Pistol Frame Parts Kit is compatible with the PF940v2, PF940C, PF940SC frame assemblies. Giving the end user multiple options with one...
Quantities are current.
I shut down my business last year and I'm getting rid of all my inventory. Check all my posts for all the parts. Everything is American made. Nothing metal-injection-molded.
No trades. I do not need any firearms, firearm parts, or ammo. Can take cash, Paypal, CashApp...
ALL SOLD PENDING FUNDS!!!!
Geissele lower parts from a super duty rifle, all new take offs
1) Black 5 axis trigger guard $25
2) Ultra duty take down pins with dentents and springs $15-SOLD!
3) Ultra duty magazine release with ultra mag button $15
4) Super configurable ambi safety $75 and...
I have assorted AR and AK lower parts including hammers triggers and assorted springs and detents. Aero precision, DPMS, and some brand I cannot remember. $35.00 for all. Gary.
I have up for sale or trade my 80 percent polymer ar lower. Was saving it for a future build but ended up acquiring another lower and no longer need this. Asking 40 bucks or trade for an upper receiver with possible cash on my end depending on upper.
I'd like to get a complete AR-15 lower parts kit to have a spare of everything, is there any particular brand and/or source that you would recommend for that purpose? Budget oriented price point preferred.
Thanks,
Josh
Need some cash for a new car so looking to sell my complete Glock 17 RMR cut slide and lower parts kit. Almost brand new, never fired just cycle checked. Also have an extra locking block and two mags.
Up for sale. SW WA, Vancouver area. Clark County area.
PSA AR-15 Lower Parts Kit.
Complete in package.
https://palmettostatearmory.com/palmetto-state-armory-classic-lpk-black-6983.html
Selling for $45 cash.
Send Conversation, Private message if interested
For sale is an AR lpk. This kit is brand new and it includes the fire control group, trigger guard, and grip along with everything else. This is everything you need to build out a stripped lower (sans buffer assembly). Brand is AR Stoner.
$50 cash in Lake Oswego. Will ship within PNW for $10 extra.
Hi so I’ve a lower for sale throw a upper on this bad boy and bang bang it’s just that simple! Quarantine had me building faaaaar to many rifles. I realized I enjoy building more and I don’t “need” as many haha my hobby =your convenience.
Anderson AM15 complete lower receiver
PSA lower...
Hi all. I would like to buy a Jig to finish my MUP 1 Insert into a P320 FCU. I'd also like to buy a lower parts kit for it. I signed up to be notified when these things are back in stock on every website I could find, but I think I may see Sasquatch first...
If you're interested in more than...
Anderson AM15 complete lower receiver
Aero precision enhanced lower parts kit and trigger
Aero rifle length buffer tube with buffer and spring
Cav Arms A2 buttstock (used)
This was purchased as a stripped lower and was never put on a rifle upper.
$200
May consider trades. Can add cash...
Glock 19 Gen 3 lower parts kit. I believe this came with a P80 but can’t remember for sure. Parts are not OEM.
Kit includes a trigger assembly and everything else needed to build a G19.3 frame EXCEPT the slide release and locking block. I gave the slide release to a buddy that needed one for a...
Mil spec LPK. Never installed. Not sure what brand. This kit does not include the fcg, grip, or trigger guard parts.
What you see is what you get.
Face to face in Lake Oswego. No shipping. No trades. Cash only.
For sale Palmeto State Armory lower parts kit, buffer tube assembly, and MFT Minimalist bra ce.
New, unused in package, got it with a kit.
Will delivery within Portland metro.
k.