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polymer
A polymer (; Greek poly-, "many" + -mer, "part") is a large molecule, or macromolecule, composed of many repeated subunits. Due to their broad range of properties, both synthetic and natural polymers play essential and ubiquitous roles in everyday life. Polymers range from familiar synthetic plastics such as polystyrene to natural biopolymers such as DNA and proteins that are fundamental to biological structure and function. Polymers, both natural and synthetic, are created via polymerization of many small molecules, known as monomers. Their consequently large molecular mass, relative to small molecule compounds, produces unique physical properties including toughness, viscoelasticity, and a tendency to form glasses and semicrystalline structures rather than crystals. The terms polymer and resin are often synonymous with plastic.
The term "polymer" derives from the Greek word πολύς (polus, meaning "many, much") and μέρος (meros, meaning "part"), and refers to a molecule whose structure is composed of multiple repeating units, from which originates a characteristic of high relative molecular mass and attendant properties. The units composing polymers derive, actually or conceptually, from molecules of low relative molecular mass. The term was coined in 1833 by Jöns Jacob Berzelius, though with a definition distinct from the modern IUPAC definition. The modern concept of polymers as covalently bonded macromolecular structures was proposed in 1920 by Hermann Staudinger, who spent the next decade finding experimental evidence for this hypothesis.Polymers are studied in the fields of biophysics and macromolecular science, and polymer science (which includes polymer chemistry and polymer physics). Historically, products arising from the linkage of repeating units by covalent chemical bonds have been the primary focus of polymer science; emerging important areas of the science now focus on non-covalent links. Polyisoprene of latex rubber is an example of a natural/biological polymer, and the polystyrene of styrofoam is an example of a synthetic polymer. In biological contexts, essentially all biological macromolecules—i.e., proteins (polyamides), nucleic acids (polynucleotides), and polysaccharides—are purely polymeric, or are composed in large part of polymeric components—e.g., isoprenylated/lipid-modified glycoproteins, where small lipidic molecules and oligosaccharide modifications occur on the polyamide backbone of the protein.The simplest theoretical models for polymers are ideal chains.
I was working on a pseudo retro-modern build but decided to go a different direction. This is my second ke-arms lower, and they are absolutely AWESOME. My other one has thousands of rounds through. 1.7lbs completed, I installed an larue trigger, tested with another upper 100rds no problem. This...
Up for sale is a CAA Micro Conversion Kit Gen2 for the Polymer 80,comes with all paperwork.trade for silver or let me know what trades you got.This only fits the Polymer 80.
Thankyou for looking.
Bought more than I need in bulk. All brand new. Steel reinforced feed lips and locking lugs. 6.00 each, up to 40 33 25
11 6 still available.
Some are marked as pictured. Some have no markings.
Open to trade options. P365 mags any size, 9mm,762x39, 223/556 ammo, ??
2x Tennessee Arms Co AR15 80% receiver blanks
2x Polymer80 AR10 80% receiver blanks
1x Tennessee Arms Co TAC-9 glock-compatible 80% receiver blank
All come with jigs, but no drill bits. $60 each, $10 shipping. If you buy them all, shipping will be free. Will sell only to OR residents.
https://www.deltateamtactical.com/polymer80-blank-cobaltgrey.html
https://www.deltateamtactical.com/polymer80-pf940sc-sub-compact-blank-coyote.html
Jigs available here: https://jig80.com/
Supposedly the SC frames use the same jig as the full size frames. The difference being that there is...
Sometimes in marriage there will be ups, downs and disagreements. When you have them it is best to just sit down, talk about it and settle it IMMEDIATELY. Don't let it linger at least that has been a part of the recipe for our longevity. So that's what we did, headed to the range to try and...
Up for sale is my practically brand new cmore railway reflex sight. It was previously mounted on a ruger 10/22 so it only saw very light recoil. I've had it for about 1 year, mostly sitting in the safe
This model is the polymer version with the standard brightness knob.
2 moa dot
As the title says. Looking for the JIG ONLY for a P80 subcompact baby glock frame. Used would be fine as long as the holes are usable.
I’ve got plenty of goodies including cash.
For sell is a Bravo Company BCM GUNFIGHTER PKMR (Polymer KeyMod Rail) Mid Length-BLACK in excellent condition. This is a non-free-float hand guard. It comes with 3 sections of BCM KeyMod Rail Covers green in color and 2 3" Picatinny rail sections. This is a mid length non free float Gand guard...
I bought this but never used it. PF940C Complete slide assembly from Polymer 80. Really nice serrations and quality.
Glock 19, compact size. Gen 3
$379 there. I'm selling for $275 f2f SE PDX.
Or Trade for 1000 rounds 9mm factory ammo...
Sold pending funds.
I have 2, one brand new PF45 Polymer 80 frame, with jig, rails, drill bits - everything from the manufacturer.
These will no longer be available unserialized after August 24 per the ATF.
They are out of stock most places.
Color is Cobalt
Glock 20 or 21 frame size
$140.
NO...